20x20x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon MERV 7 Actual Size: 15 7/8 x

Actual Size: 15 7/8 x 19 3/4 x 4 3/8 (15

CONSTRUCTION: Custom air filters are made by cutting down or combining 1

Ideal for normal air filtration and will help those with mild allergies

Nordic Pure 16x20x4 Plus Carbon Air Filters MERV 15 are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that will attract and capture most airborne particulates in your home

Replaces Honeywell 16x20x4 and filters with an MPR rating with an actual depth of 4 3/8 and ideal for normal air filtration

20x20x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon MERV 7 Actual Size: 15 7/8 xActual 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