20x20x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon Number Per Box:1 Nordic Pure 20x20x4 Plus Carbon

Nordic Pure 20x20x4 Plus Carbon Air Filters MERV 8 are made of a dual material where the MERV rated material has been fused together with a carbon layer

they might not be pretty

If you are looking for cleaner

Nordic Pure 14x14x1 MERV 14 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

Nordic Pure 16x24x2 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

20x20x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon Number Per Box:1 Nordic Pure 20x20x4 Plus CarbonActual 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