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we recommend that you change your air filter every 3-6 months to maintain maximum efficiency and economy
bonded to the pleats for extra support
We recommend changing your HVAC furnace filter every 1-3 months
Nordic Pure 16x20x5 Honeywell Replacement MERV 15 rated air filters are what is considered the traditional 5” filter at an actual 4 3/8”
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
16x20x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon Number Per Box:1 we recommend that you changeActual 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