Item Model Number: FKFB23.5X23.5X4N
Brand: Filter King Filter size: 23.5x23.5x4 Actual Size: 23.1 x 23.1 x 3.75 4-Inch Filter MERV 8 Filter Rating Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses Residential / Commercial Use
Item Model Number: FKFA23.5X23.5X4N
Brand: Filter King Filter size: 23.5x23.5x4 Actual Size: 23.1 x 23.1 x 3.75 4-Inch Filter MERV 11 Filter Rating Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses Residential / Commercial Use
Item Model Number: FKFD23.5X23.5X4N
Brand: Filter King Filter size: 23.5x23.5x4 Actual Size: 23.1 x 23.1 x 3.75 4-Inch Filter MERV 13 Filter Rating Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses Residential / Commercial Use
Item Model Number: FKFO23.5X23.5X4N
Brand: Filter King Filter size: 23.5x23.5x4 Actual Size: 23.1 x 23.1 x 3.75 MERV 10 Carbon Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Smoke, Odor Residential / Commercial Use