20x20x4 (3 5/8) Pleated MERV 15 Air Filters Number Per Box:2 use a tape measure to

use a tape measure to determine the exact width (short side) and exact height (long side) of your current air filter

Nordic Pure 16x25x5 1/4 Goodman/Carrier/Amana Replacement MERV 10 air filters are unique because of the actual size of the filter compared to the nominal size

You might check the actual sizes of our other air filters to make sure a standard size air filter wouldn't work for you

Nordic Pure 12x18x1 MERV 12 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 16x20x1 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

20x20x4 (3 5/8) Pleated MERV 15 Air Filters Number Per Box:2 use a tape measure toActual Size: 19 1 2 x 19 1 2 x 3 5 8 (19. 5 x 19. 5 x 3. 63) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and removed. If you are replacing a Honeywell or Lennox 20x20x4 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 MERV 15+ is