20x25x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 10x14x1 This means harmful vapors and

This means harmful vapors and strong odors are trapped and neutralized

Since you can't return custom sized air filters

Replaces Trion Air Bear Cub filters and others that require an actual 3" depth and ideal for helping keep equipment working efficiently and reducing odors

Nordic Pure 20x25x6 Aprilaire Space-Gard 2200 Replacement Air Filters Part 201 MERV 13 Plus Carbon are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home

Nordic Pure 16x25x5 Air Bear Replacement MERV 8 air filters measure an actual depth of 4 7/8"

20x25x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 10x14x1 This means harmful vapors andActual Size: 19 1 2 x 24 1 2 x 3 5 8 (19. 5 x 24. 5 x 3. 63) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores, help eliminate unwanted odors and other contaminants. If you are replacing a Honeywell or Lennox 20x25x4 Plus Carbon or an air filter with an MPR rating with an actual depth of 4 3 8, please see our 20x25x5 (4 3 8 actual depth) Hypoallergenic, antimicrobial, and electrostatic filter