Item Model Number: FKFB18X20
Brand: Filter King Filter size: 18x20x1 Actual Size: 17.75 x 19.75 x .75 1-Inch Filter MERV 8 Filter Rating Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses Residential / Commercial Use
Item Model Number: FKFA18X20
Brand: Filter King Filter size: 18x20x1 Actual Size: 17.75 x 19.75 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: FKFD18X20
Brand: Filter King Filter size: 18x20x1 Actual Size: 17.5 x 19.5 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: FKFI18X20
Brand: Filter King Filter size: 18x20x1 Actual Size: 17.5 x 19.5 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: FKFO18X20X1
Brand: Filter King Filter size: 18x20x1 Actual Size: 17.5 x 19.5 x .75 MERV 10 Carbon Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Smoke, Odor Residential / Commercial Use