Air Bear 20x20x5 (4 15/16) Replacement 266649-103 MERV 13 Air Filters 18x24x2 2 or 3 air filter

2 or 3 air filter frames

If you are replacing a Honeywell or Lennox 20x20x4 or an air filter with an MPR rating with an actual depth of 4 3/8

Nordic Pure 16x25x5 1/4 Goodman/Carrier/Amana Replacement MERV 8 air filters are unique because of the actual size of the filter compared to the nominal size

Nordic Pure 20x25x5 Air Bear Replacement MERV 14 air filters measure an actual depth of 4 7/8"

Air Bear 20x20x5 (4 15/16) Replacement 266649-103 MERV 13 Air Filters 18x24x2 2 or 3 air filterActual Size: 19 11 16 x 20 11 16 x 4 15 16 (19. 69 x 20. 69 x 4. 94) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores, smog and other contaminants. Trion Air Bear Replacement filters have a depth of 4 15 16" and ideal for customers looking for superior filtration Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 13 is equivalent to MPR