16x20x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon Number Per Box:1 Actual Size: 13 1/2 x

Actual Size: 13 1/2 x 24 1/2 x 1/2 (13

The Actual Size listed above is the exact size of the metal frame

pet dander and pollen and microscopic allergens such as dust and smoke particles like a magnet

Nordic Pure 14x24x1 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

We recommend changing your HVAC furnace filter every 1-3 months

16x20x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon Number Per Box:1 Actual Size: 13 1/2 xActual Size: 15 1 2 x 19 1 2 x 3 5 8 (15. 5 x 19. 5 x 3. 63) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and helps eliminate unwanted odors and other contaminants. If you are replacing a Honeywell or Lennox 16x20x4 Plus Carbon or an air filter with an MPR rating with an actual depth of 4 3 8, please see our 16x20x5 (4 3 8 actual depth) Hypoallergenic, antimicrobial, and electrostatic filter