{"title":"14x20x1 Air Filters","description":"\n\u003cp\u003e\u003cstrong\u003eQuick answer:\u003c\/strong\u003e 14x20x1 is the nominal size printed on the frame — the actual size is about 13.5 × 19.5 × 0.75 in. It's common in apartments, condos and compact air handlers. Every filter below is American-made pleated media; pick your MERV rating and pack size.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNominal vs actual:\u003c\/em\u003e a 14x20x1 filter measures 13.5 × 19.5 × 0.75 in so it slides into a 14x20x1 slot without jamming. If your old filter says 14x20x1, these fit.\u003c\/p\u003e\n\u003ch2\u003eWhich MERV rating for 14x20x1?\u003c\/h2\u003e\n\u003cp\u003eMERV 8 handles everyday dust, lint and pollen. Step up to MERV 10–12 for pet dander and allergies, and MERV 13 or higher for smoke, bacteria and wildfire season. Carbon versions add odor control for cooking, pets and VOCs. Not sure? Read our \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eMERV rating guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003e14x20x1 FAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat is a 14x20x1 air filter?\u003c\/h3\u003e\n\u003cp\u003e14x20x1 is the nominal (label) size. The actual size is about 13.5 × 19.5 × 0.75 in, so it fits a 14x20x1 slot with room to slide in. It's common in apartments, condos and compact air handlers. Ironside stocks it in every MERV rating we carry, including activated-carbon versions.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV rating should I get in 14x20x1?\u003c\/h3\u003e\n\u003cp\u003eMERV 8 covers dust and pollen for most homes. Go MERV 10–12 for pets or allergies, MERV 13+ for smoke, bacteria and wildfire season. Higher MERV means finer filtration; change it every 90 days.\u003c\/p\u003e\n\u003ch3\u003eDoes shipping cost more if I buy more than one pack?\u003c\/h3\u003e\n\u003cp\u003eNo. Shipping is a flat rate and stays the same on 1, 2 or 3 packs. Stocking a year of filters in one order is the cheapest way to buy — you pay freight once instead of every time.\u003c\/p\u003e\n\u003cp\u003eIronside 14x20x1 filters are made in the USA by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Replace 1-inch filters every 90 days — more often with pets or during allergy and wildfire season. Shipping is flat-rate and stays the same whether you order 1, 2 or 3 packs, so a year's supply costs less per filter than buying one at a time. Every MERV rating we stock in 14x20x1 is below, carbon options included. Built here. Breathe better.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is a 14x20x1 air filter?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"14x20x1 is the nominal (label) size. The actual size is about 13.5 × 19.5 × 0.75 in, so it fits a 14x20x1 slot with room to slide in. It's common in apartments, condos and compact air handlers. Ironside stocks it in every MERV rating we carry, including activated-carbon versions.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What MERV rating should I get in 14x20x1?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 8 covers dust and pollen for most homes. Go MERV 10–12 for pets or allergies, MERV 13+ for smoke, bacteria and wildfire season. Higher MERV means finer filtration; change it every 90 days.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does shipping cost more if I buy more than one pack?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. Shipping is a flat rate and stays the same on 1, 2 or 3 packs. Stocking a year of filters in one order is the cheapest way to buy — you pay freight once instead of every time.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","products":[{"product_id":"14x20x1-merv-10","title":"14x20x1 MERV 10 Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 10 pleated air filter delivers allergy \u0026amp; pet defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures pet dander, mold spores, and fine allergens\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 10 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 10 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 10 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 10 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636016816370,"sku":"14x20x1M10-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636016849138,"sku":"14x20x1M10-3","price":43.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636016881906,"sku":"14x20x1M10-4","price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-10.jpg?v=1780790600"},{"product_id":"14x20x1-merv-10-tru-mini-pleat","title":"14x20x1 MERV 10 Tru Mini Pleat Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 10 pleated air filter delivers allergy \u0026amp; pet defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures pet dander, mold spores, and fine allergens\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 10 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 10 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 10 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 10 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636017012978,"sku":"14x20x1M10MiniPleat-2","price":33.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636017045746,"sku":"14x20x1M10MiniPleat-3","price":39.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636017078514,"sku":"14x20x1M10MiniPleat-4","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-10-tru-mini-pleat.jpg?v=1780790600"},{"product_id":"14x20x1-merv-11-tru-mini-pleat","title":"14x20x1 MERV 11 Tru Mini Pleat Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 11 pleated air filter delivers allergy \u0026amp; pet defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures pet dander, mold spores, and fine allergens\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 11 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 11 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 11 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 11 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636017176818,"sku":"14x20x1M11MiniPleat-2","price":33.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636017209586,"sku":"14x20x1M11MiniPleat-3","price":39.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636017242354,"sku":"14x20x1M11MiniPleat-4","price":50.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-11-tru-mini-pleat.jpg?v=1780790600"},{"product_id":"14x20x1-merv-12","title":"14x20x1 MERV 12 Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 12 pleated air filter delivers allergy \u0026amp; pet defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures pet dander, mold spores, and fine allergens\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 12 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 12 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 12 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 12 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636017340658,"sku":"14x20x1M12-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636017373426,"sku":"14x20x1M12-3","price":43.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636017406194,"sku":"14x20x1M12-4","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-12.jpg?v=1780790600"},{"product_id":"14x20x1-merv-12-tru-mini-pleat","title":"14x20x1 MERV 12 Tru Mini Pleat Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 12 pleated air filter delivers allergy \u0026amp; pet defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures pet dander, mold spores, and fine allergens\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 12 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 12 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 12 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 12 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636017701106,"sku":"14x20x1M12MiniPleat-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636017733874,"sku":"14x20x1M12MiniPleat-3","price":42.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636017766642,"sku":"14x20x1M12MiniPleat-4","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-12-tru-mini-pleat.jpg?v=1780790600"},{"product_id":"14x20x1-merv-13-plus-carbon","title":"14x20x1 MERV 13 + Carbon Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 activated-carbon air filter pairs pleated filtration with a carbon layer to trap both airborne particles and the odors that come with cooking, pets, smoke, and VOCs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures everyday particles \u003cb\u003eplus neutralizes household odors\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated + activated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 13 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 13 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 13 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 13 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636019339506,"sku":"14x20x1M13+C-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636019372274,"sku":"14x20x1M13+C-3","price":58.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636019405042,"sku":"14x20x1M13+C-4","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-13-plus-carbon.jpg?v=1780790600"},{"product_id":"14x20x1-merv-13","title":"14x20x1 MERV 13 Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 13 pleated air filter delivers maximum protection for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures smoke, bacteria, virus carriers, and wildfire particulates\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 13 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 13 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 13 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 13 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636019536114,"sku":"14x20x1M13-2","price":35.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636019568882,"sku":"14x20x1M13-3","price":44.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636019601650,"sku":"14x20x1M13-4","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-13.jpg?v=1780790600"},{"product_id":"14x20x1-merv-13-tru-mini-pleat","title":"14x20x1 MERV 13 Tru Mini Pleat Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 13 pleated air filter delivers maximum protection for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures smoke, bacteria, virus carriers, and wildfire particulates\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 13 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 13 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 13 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 13 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636019732722,"sku":"14x20x1M13MiniPleat-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636019765490,"sku":"14x20x1M13MiniPleat-3","price":43.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636019798258,"sku":"14x20x1M13MiniPleat-4","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-13-tru-mini-pleat.jpg?v=1780790600"},{"product_id":"14x20x1-merv-14-plus-carbon","title":"14x20x1 MERV 14 + Carbon Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 activated-carbon air filter pairs pleated filtration with a carbon layer to trap both airborne particles and the odors that come with cooking, pets, smoke, and VOCs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures everyday particles \u003cb\u003eplus neutralizes household odors\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated + activated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 14 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 14 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 14 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 14 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636021436658,"sku":"14x20x1M14+C-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636021469426,"sku":"14x20x1M14+C-3","price":68.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636021502194,"sku":"14x20x1M14+C-4","price":77.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-14-plus-carbon.jpg?v=1780790600"},{"product_id":"14x20x1-merv-14","title":"14x20x1 MERV 14 Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 14 pleated air filter delivers maximum protection for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures smoke, bacteria, virus carriers, and wildfire particulates\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 14 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 14 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 14 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 14 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636021633266,"sku":"14x20x1M14-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636021666034,"sku":"14x20x1M14-3","price":49.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636021698802,"sku":"14x20x1M14-4","price":72.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-14.jpg?v=1780790600"},{"product_id":"14x20x1-merv-16","title":"14x20x1 MERV 16 Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 16 pleated air filter delivers maximum protection for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures smoke, bacteria, virus carriers, and wildfire particulates\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 16 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 16 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 16 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 16 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636021829874,"sku":"14x20x1M16-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636021862642,"sku":"14x20x1M16-3","price":67.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636021895410,"sku":"14x20x1M16-4","price":82.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-16.jpg?v=1780790600"},{"product_id":"14x20x1-merv-7-plus-carbon","title":"14x20x1 MERV 7 + Carbon Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 activated-carbon air filter pairs pleated filtration with a carbon layer to trap both airborne particles and the odors that come with cooking, pets, smoke, and VOCs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures everyday particles \u003cb\u003eplus neutralizes household odors\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated + activated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 7 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 7 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 7 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 7 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636023501042,"sku":"14x20x1M7+C-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636023533810,"sku":"14x20x1M7+C-3","price":51.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636023566578,"sku":"14x20x1M7+C-4","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-7-plus-carbon.jpg?v=1780790600"},{"product_id":"14x20x1-merv-7","title":"14x20x1 MERV 7 Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 7 pleated air filter delivers everyday defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures dust, lint, pollen, and dust mites\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 7 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 7 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 7 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 7 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636023697650,"sku":"14x20x1M7-2","price":33.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636023730418,"sku":"14x20x1M7-3","price":42.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636023763186,"sku":"14x20x1M7-4","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-7.jpg?v=1780790601"},{"product_id":"14x20x1-merv-8","title":"14x20x1 MERV 8 Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 8 pleated air filter delivers everyday defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures dust, lint, pollen, and dust mites\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 8 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 8 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 8 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 8 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636023894258,"sku":"14x20x1M8-2","price":33.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636023927026,"sku":"14x20x1M8-3","price":42.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636023959794,"sku":"14x20x1M8-4","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-8.jpg?v=1780790600"},{"product_id":"14x20x1-merv-8-tru-mini-pleat","title":"14x20x1 MERV 8 Tru Mini Pleat Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 8 pleated air filter delivers everyday defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures dust, lint, pollen, and dust mites\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 8 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 8 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 8 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 8 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636024090866,"sku":"14x20x1M8MiniPleat-2","price":32.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636024123634,"sku":"14x20x1M8MiniPleat-3","price":38.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636024156402,"sku":"14x20x1M8MiniPleat-4","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-8-tru-mini-pleat.jpg?v=1780790600"},{"product_id":"14x20x1-merv-8-pure-carbon","title":"14x20x1 MERV 8 Pure Carbon Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 activated-carbon air filter pairs pleated filtration with a carbon layer to trap both airborne particles and the odors that come with cooking, pets, smoke, and VOCs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures everyday particles \u003cb\u003eplus neutralizes household odors\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated + activated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 8 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 8 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 8 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 8 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636025729266,"sku":"14x20x1PCP-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636025762034,"sku":"14x20x1PCP-3","price":53.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636025794802,"sku":"14x20x1PCP-4","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-8-pure-carbon.jpg?v=1780790600"},{"product_id":"14x20x1-merv-10-p-plus-carbon","title":"14x20x1 MERV 10 P + Carbon Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 activated-carbon air filter pairs pleated filtration with a carbon layer to trap both airborne particles and the odors that come with cooking, pets, smoke, and VOCs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures everyday particles \u003cb\u003eplus neutralizes household odors\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated + activated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 10 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 10 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 10 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 10 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636025893106,"sku":"14x20x1PM10C-2","price":41.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636025925874,"sku":"14x20x1PM10C-3","price":53.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636025958642,"sku":"14x20x1PM10C-4","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-10-p-plus-carbon.jpg?v=1780790600"},{"product_id":"14x20x1-merv-12-p-plus-carbon","title":"14x20x1 MERV 12 P + Carbon Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 activated-carbon air filter pairs pleated filtration with a carbon layer to trap both airborne particles and the odors that come with cooking, pets, smoke, and VOCs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures everyday particles \u003cb\u003eplus neutralizes household odors\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated + activated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 12 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 12 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 12 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 12 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636026089714,"sku":"14x20x1PM12C-2","price":42.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636026122482,"sku":"14x20x1PM12C-3","price":55.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636026155250,"sku":"14x20x1PM12C-4","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-12-p-plus-carbon.jpg?v=1780790600"},{"product_id":"14x20x1-merv-8-p-plus-carbon","title":"14x20x1 MERV 8 P + Carbon Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 activated-carbon air filter pairs pleated filtration with a carbon layer to trap both airborne particles and the odors that come with cooking, pets, smoke, and VOCs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures everyday particles \u003cb\u003eplus neutralizes household odors\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated + activated carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 8 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 8 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 8 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 8 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636026286322,"sku":"14x20x1PM8C-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636026319090,"sku":"14x20x1PM8C-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-8-p-plus-carbon.jpg?v=1780790600"},{"product_id":"14x20x1-merv-6-poly-green","title":"14x20x1 MERV 6 Poly Green Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1 MERV 6 pleated air filter delivers everyday defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures dust, lint, pollen, and dust mites\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 6 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 6 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 6 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 6 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"2-Pack","offer_id":49636026450162,"sku":"14x20x1PolyGreen-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"3-Pack","offer_id":49636026482930,"sku":"14x20x1PolyGreen-3","price":41.99,"currency_code":"USD","in_stock":true},{"title":"4-Pack","offer_id":49636026515698,"sku":"14x20x1PolyGreen-4","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-merv-6-poly-green.jpg?v=1780790600"},{"product_id":"14x20x1-2-half-inch-panel-merv-10","title":"14x20x1\/2 Half Inch Panel MERV 10 Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1\/2 MERV 10 pleated air filter delivers allergy \u0026amp; pet defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures pet dander, mold spores, and fine allergens\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1\/2 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 10 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 10 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 10 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 10 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"6-Pack","offer_id":49636028121330,"sku":"14x20x_1\/2_M10-6","price":74.99,"currency_code":"USD","in_stock":true},{"title":"12-Pack","offer_id":49636028154098,"sku":"14x20x_1\/2_M10-12","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-2-half-inch-panel-merv-10.jpg?v=1780790600"},{"product_id":"14x20x1-2-half-inch-panel-merv-12","title":"14x20x1\/2 Half Inch Panel MERV 12 Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1\/2 MERV 12 pleated air filter delivers allergy \u0026amp; pet defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures pet dander, mold spores, and fine allergens\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1\/2 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 12 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 12 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 12 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 12 captures pet dander, mold spores, fine dust and pollen — the sweet spot for homes with pets or mild allergies.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"6-Pack","offer_id":49636028186866,"sku":"14x20x_1\/2_M12-6","price":75.99,"currency_code":"USD","in_stock":true},{"title":"12-Pack","offer_id":49636028219634,"sku":"14x20x_1\/2_M12-12","price":127.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-2-half-inch-panel-merv-12.jpg?v=1780790600"},{"product_id":"14x20x1-2-half-inch-panel-merv-13","title":"14x20x1\/2 Half Inch Panel MERV 13 Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1\/2 MERV 13 pleated air filter delivers maximum protection for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures smoke, bacteria, virus carriers, and wildfire particulates\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1\/2 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 13 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 13 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 13 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 13 captures fine particles including smoke, bacteria-sized particles and the dust that reaches deep into lungs — the right choice for allergies, asthma and wildfire season.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"6-Pack","offer_id":49636028252402,"sku":"14x20x_1\/2_M13-6","price":77.99,"currency_code":"USD","in_stock":true},{"title":"12-Pack","offer_id":49636028285170,"sku":"14x20x_1\/2_M13-12","price":133.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-2-half-inch-panel-merv-13.jpg?v=1780790600"},{"product_id":"14x20x1-2-half-inch-panel-merv-7","title":"14x20x1\/2 Half Inch Panel MERV 7 Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1\/2 MERV 7 pleated air filter delivers everyday defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures dust, lint, pollen, and dust mites\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1\/2 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 7 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 7 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 7 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 7 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"6-Pack","offer_id":49636028317938,"sku":"14x20x_1\/2_M7-6","price":72.99,"currency_code":"USD","in_stock":true},{"title":"12-Pack","offer_id":49636028350706,"sku":"14x20x_1\/2_M7-12","price":122.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-2-half-inch-panel-merv-7.jpg?v=1780790600"},{"product_id":"14x20x1-2-half-inch-panel-merv-8","title":"14x20x1\/2 Half Inch Panel MERV 8 Air Filter","description":"\u003cp\u003eThe Ironside 14x20x1\/2 MERV 8 pleated air filter delivers everyday defense for your home or office — engineered to keep your HVAC system running clean and your air clear.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCaptures dust, lint, pollen, and dust mites\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue 14x20x1\/2 fit\u003c\/b\u003e — sized to drop straight into standard HVAC and furnace systems\u003c\/li\u003e\n\u003cli\u003eElectrostatically charged, moisture-resistant pleated media\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eReplace every 30–90 days for best airflow and efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBuilt here. Breathe better.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv data-ironside-specs\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14x20x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActual size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5 × 19.5 × 0.75 in (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilter type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePleated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectrostatic synthetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplace\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEvery 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMade in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA, by our manufacturing partners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/14x20x1-air-filters\"\u003eAll 14x20x1 filters →\u003c\/a\u003e · \u003ca href=\"\/blogs\/news\/what-merv-rating-do-i-need\"\u003eWhich MERV do I need?\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct FAQ\u003c\/h2\u003e\n\u003ch3\u003eWill a 14x20x1 filter fit my system?\u003c\/h3\u003e\n\u003cp\u003eIf your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\u003c\/p\u003e\n\u003ch3\u003eWhat does MERV 8 capture?\u003c\/h3\u003e\n\u003cp\u003eMERV 8 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\u003c\/p\u003e\n\u003ch3\u003eHow many packs should I buy?\u003c\/h3\u003e\n\u003cp\u003eShipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\u003c\/p\u003e\n\u003ch3\u003eIs this filter made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\" data-ironside-faq\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will a 14x20x1 filter fit my system?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"If your slot or old filter says 14x20x1, yes — nominal sizes are standardized. Actual size runs about half an inch under nominal so it slides in without jamming.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does MERV 8 capture?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"MERV 8 captures everyday dust, lint and pollen — solid baseline protection for homes without allergy concerns.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many packs should I buy?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Shipping is flat-rate and stays the same on 1, 2 or 3 packs — so a year's supply in one order is the cheapest way to buy. Four filters covers a year at the 90-day schedule.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this filter made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — American-made by our manufacturing partners with electrostatic synthetic media in heavy-duty frames. Built here. Breathe better.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Ironside","offers":[{"title":"6-Pack","offer_id":49636028383474,"sku":"14x20x_1\/2_M8-6","price":73.99,"currency_code":"USD","in_stock":true},{"title":"12-Pack","offer_id":49636028416242,"sku":"14x20x_1\/2_M8-12","price":123.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0820\/6152\/5234\/files\/14x20x1-2-half-inch-panel-merv-8.jpg?v=1780790600"}],"url":"https:\/\/getironside.com\/collections\/14x20x1-air-filters.oembed?page=2","provider":"Ironside.","version":"1.0","type":"link"}