20x25x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon Number Per Box:2 If you are replacing a

If you are replacing a Honeywell or Lennox 16x20x4 or an air filter with an MPR rating with an actual depth of 4 3/8

mold spores and other contaminants are removed

Nordic Pure 20x22x1 MERV 13 Plus Carbon air filters 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

Since you can't return custom sized air filters

Nordic Pure 16x25x5 Air Bear Replacement MERV 15 air filters measure an actual depth of 4 7/8"

20x25x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon Number Per Box:2 If you are replacing aActual Size: 19 1 2 x 24 1 2 x 3 5 8 (19. 5 x 24. 5 x 3. 63) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and helps 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