16x25x5 Air Filters

Quick answer: 16x25x5 is the nominal size for 5-inch media cabinets; it's the media size for 16x25 filter cabinets — including Honeywell F100F1025 (our "H" line), Trion Air Bear Cub ("AB") and Lennox X6672 ("LXRED") cabinets. Every filter below is American-made deep-pleat media — match the letter code to your cabinet and pick your MERV rating.

Which line fits your cabinet?

H = Honeywell F100/F150 cabinets · AB = Trion Air Bear · LXRED = Lennox X-series · no letter = generic 5-inch slots. Not sure? Our brand guides map the common part numbers, or read the 1-inch vs deep-pleat guide.

16x25x5 FAQ

What is a 16x25x5 air filter?

16x25x5 is nominal media-cabinet sizing. Actual depth runs about 4⅜ inches depending on the cabinet line — that's normal. It's the media size for 16x25 filter cabinets — including Honeywell F100F1025 (our "H" line), Trion Air Bear Cub ("AB") and Lennox X6672 ("LXRED") cabinets. One media filter replaces a year of monthly 1-inch changes.

Which 16x25x5 line fits my cabinet?

Match the letter to your cabinet: "H" fits Honeywell F100/F150 media cabinets, "AB" fits Trion Air Bear, "LXRED" fits Lennox X-series. The plain 16x25x5 fits generic 5-inch slots. Check the part number on your cabinet door.

How often do I change a 16x25x5 media filter?

Every 6–12 months. Deep pleats hold far more dust than a 1-inch filter, which is why one order of a 2- or 4-pack covers years — and shipping costs the same on 1, 2 or 3 packs.

Ironside 16x25x5 media filters are made in the USA by our manufacturing partners. Replace every 6–12 months. Flat-rate shipping stays the same on 1, 2 or 3 packs — stock two years of clean air in one order. Built here. Breathe better.