Find My Filter

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Find Your Filter.

Check the size printed on the cardboard edge of your old filter, then match it below.

Not sure of your size? Most homes use 16x25x1 or 20x25x1.

OR SHOP BY PROTECTION
Everyday DefenseMERV 6–8 · dust, lint, pollen Allergy & PetMERV 10–12 · dander, mold, allergens Maximum ProtectionMERV 13–16 · smoke, bacteria, wildfire Odor & SmokeActivated carbon · cooking, pets, VOCs

Every Ironside filter is pleated, electrostatically charged, and made in the USA. Not sure which MERV rating you need? Shop by protection level: Everyday Defense for dust and pollen, Allergy & Pet for dander and allergens, Maximum Protection for smoke and fine particles, or Odor & Smoke with activated carbon. Same flat-rate shipping whether you order 1, 2 or 3 filters — stock up and save.