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Item Model Number: FKFB12.75X21X4A
Brand: Filter King Filter size: 12.75x21x4 Actual Size: 12.75 x 21 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
Manufactured in the US
12.5x21x4
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