20x25x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon Number Per Box:6 Actual Size: 17 x 26

Actual Size: 17 x 26 1/2 x 3/4 (17 x 26

Nordic Pure 16x20x4 Pleated Air Filters MERV 13 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home

Actual Size: 17 1/2 x 17 1/2 x 1/2 (17

Nordic Pure 12x24x4 MERV 13 Plus Carbon air filters 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 Trion Air Bear Cub filters and others that require an actual 3" depth and ideal for high efficiency air filtration and those with moderate allergies

20x25x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon Number Per Box:6 Actual Size: 17 x 26Actual Size: 19 1 2 x 24 1 2 x 3 5 8 (19. 5 x 24. 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 20x25x4 Plus Carbon or an air filter with an MPR rating with an actual depth of 4 3 8, please see our 20x25x5 (4 3 8 actual depth) Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure