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21x21x1a / MERV 10 Carbon
Item Model Number: FKFO21X21X1A Brand: Filter King Filter size: 21x21x1 Actual Size: 21 x 21 x .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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