20x20x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon Number Per Box:1 For example

For example

25 x 35 x 0

Actual Size: 11 1/2 x 23 3/8 x 3 5/8 (11

In combination

Odorus gases and vapors (VOC) are attracted to and held by the activated carbon material while maintaining excellent air flow properties

20x20x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon Number Per Box:1 For exampleActual Size: 19 1 2 x 19 1 2 x 3 5 8 (19. 5 x 19. 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 20x20x4 Plus Carbon or an air filter with an MPR rating with an actual depth of 4 3 8, please see our 20x20x5 (4 3 8 actual depth) Hypoallergenic, antimicrobial, and electrostatic filter