20x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon Number Per Box:6 Nordic Pure 18x24x2 MERV 8

Nordic Pure 18x24x2 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

Nordic Pure 12x25x1 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 20x20x5 Honeywell Replacement MERV 12 rated air filters are what is considered the traditional 5” filter at an actual 4 3/8”

MERV 13 Air Bear Cub Replacement furnace air conditioner filters are comparable to HVAC filters with the rating of MPR 2200-2400

20x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon Number Per Box:6 Nordic Pure 18x24x2 MERV 8Actual Size: 19 1 2 x 19 1 2 x 3 5 8 (19. 5 x 19. 5 x 3. 63) Captures large airborne particles like lint, household dust, pollen, dust mites, mold spores 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 media. Moisture resistant frame. Nordic Pure