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Find Your Filter.

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

Width

Length

Depth

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

Lennox-Compatible Media Filters

Quick answer: Deep-pleat media sized for Lennox X-series cabinets — replacements for X6672 (16x25x5), X6673 and X6675 (20x25x5). Match the part number on your cabinet door, pick a MERV rating, and you're done. Shipping is flat-rate — same on 1, 2 or 3 packs.