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20x21.5x4a / MERV 10 Carbon
Item Model Number: FKFO20X21.5X4A Brand: Filter King Filter size: 20x21.5x4 Actual Size: 20 x 21.5 x 3.75 MERV 10 Carbon Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Smoke, Odor Residential / Commercial Use
Manufactured in the US
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