18x20x2 Furnace Air Filters MERV 10 Pleated Plus Carbon Number Per Box:12 Actual Size: 16 1/2 x

Actual Size: 16 1/2 x 24 1/2 x 3/4 (16

Actual Size: 11 1/4 x 23 1/4 x 3/4 (11

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

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

MERV 14 Trion Air Bear replacement furnace air conditioner filters are comparable to HVAC filters with the rating of MPR 2800

18x20x2 Furnace Air Filters MERV 10 Pleated Plus Carbon Number Per Box:12 Actual Size: 16 1/2 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