21x21x4 MERV 11 Pleated Air Filter

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4 21x21x4 Air Filter for 38.39 each

21x21x4 MERV 11 filters made and manufactured by FilterBuy
Actual Size 20.5x20.5x3.75"
Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog.
Ideal for standard and residential commercial use
Designed to last 90 days. Replace regularly for optimum performance.
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Reviews for 21x21x4 MERV 11 Pleated Air Filter

5.0 1 Review

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Updating Results

01/21/20

Nino A.

12/21/18

Would buy again fast easy

Filters were as described fast delivery thanks!

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