18x20x2 Furnace Air Filters MERV 10 Pleated Plus Carbon Number Per Box:12 Actual Size: 15 3/8 x

Actual Size: 15 3/8 x 23 3/8 x 1 3/4 (15

Actual Size: 13 1/4 x 13 1/4 x 3/4 (13

We also carry 4 7/8 and 5 1/4 inch depth filters

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

Nordic Pure 3” MERV 12 Trion Air Bear Cub Replacement filters are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home or office

18x20x2 Furnace Air Filters MERV 10 Pleated Plus Carbon Number Per Box:12 Actual Size: 15 3/8 xActual Size: 17 1 2 x 19 1 2 x 1 3 4 (17. 5 x 19. 5 x 1. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores, help eliminate unwanted odors and other contaminants. Ideal for customers who not only need odor control but whose daily life demands high filtration Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 10 is equivalent to MPR 1000