Item Model Number: FKFB20X21A
Brand: Filter King Air Filter size: 20x21x1 Actual Size: 20 x 21 x .75 1-Inch Filter MERV 8 Air Filter Rating Protection From: Pollen, Household Dust, Mold Spores, Dust Mites mold, Bacteria, Pet Dander, Smoke, Viruses Residential / Commercial Use
Item Model Number: FKFA20X21A
Brand: Filter King Filter size: 20x21x1 Actual Size: 20 x 21 x .75 1-Inch Filter MERV 11 Filter Rating Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses Residential / Commercial Use
Item Model Number: FKFD20X21A
Brand: Filter King Filter size: 20x21x1 Actual Size: 20 x 21 x .75 1-Inch Filter MERV 13 Filter Rating Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses Residential / Commercial Use
Item Model Number: FKFI20X21A
Brand: Filter King Filter size: 20x21x1 Actual Size: 20 x 21 x .75 1-Inch Filter MERV 13 Filter Rating Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses Residential / Commercial Use
Item Model Number: FKFO20X21X1A
Brand: Filter King Filter size: 20x21x1 Actual Size: 20 x 21 x .75 MERV 10 Carbon Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Smoke, Odor Residential / Commercial Use