16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 15 Plus Carbon Number Per Box:1 Nordic Pure 16x28x6 Aprilaire Space-Gard

Nordic Pure 16x28x6 Aprilaire Space-Gard 2400 Replacement Air Filters Part 401 MERV 8 Plus Carbon are made of a dual material where the MERV rated material has been fused together with a carbon layer

Actual Size: 9 1/2 x 23 1/2 x 3/4 (9

a human hair is about 70 microns wide

If you are replacing a Honeywell or Lennox 16x25x4 or an air filter with an MPR rating with an actual depth of 4 3/8

16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 15 Plus Carbon Number Per Box:1 Nordic Pure 16x28x6 Aprilaire Space-GardActual Size: 15 7 8 x 19 3 4 x 4 3 8 (15. 88 x 19. 75 x 4. 38) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and helps eliminate unwanted odors and other contaminants. Replaces Honeywell 16x20x4 and filters with an MPR rating with an actual depth of 4 3 8 and ideal for superior filtration and odor control or commercial units Hypoallergenic, antimicrobial, and electrostatic filter media.