20x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon Number Per Box:6 Actual Size: 9 1/2 x

Actual Size: 9 1/2 x 23 1/2 x 1/2 (9

0 micron contaminants

Nordic Pure 12x36x1 MERV 10 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

CONSTRUCTION: Our custom pleated carbon air filters are made by cutting down or combining 1

5 x 29 x 0

20x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon Number Per Box:6 Actual Size: 9 1/2 xActual 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