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21x23x4 Air Filter

AC Furnace Air Filter 21x23x4-Inches

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Product Description

Item Model Number: FKFB21X23X4A
Brand: Filter King
Filter size: 21x23x4
Actual Size: 21 x 23 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