20x20x1 Pleated MERV 13 Air Filters Number Per Box:6 We recommend that you change

We recommend that you change your air filter every 30-90 days to maintain maximum efficiency and economy

Nordic Pure 14x30x1 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 18x24x1 MERV 13 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

Each time air passes through a Nordic Pure Pleated ASG activated carbon replacement furnace filter

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

20x20x1 Pleated MERV 13 Air Filters Number Per Box:6 We recommend that you changeActual Size: 19 1 2 x 19 1 2 x 3 4 (19. 5 x 19. 5 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores, smog and other contaminants. Ideal for customers looking for superior filtration Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 13 is equivalent to MPR 2200 2400 Made in the USA. Nordic Pure MERV 13 Pleated AC Furnace Air Filters