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16.25x21x4a / MERV 10 Carbon
Item Model Number: FKFO16.25X21X4A Brand: Filter King Filter size: 16.25x21x4 Actual Size: 16.25 x 21 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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