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MERV 11 - Pleated Air Filter - Recommended for Pet Owners
24" x 25" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack
Actual Dimensions: 21 1/2" x 21 1/2" x 3 3/4"
12" x 36" x 1" Permanent Washable Air Filter - 1 Pack
24" x 36" x 1" Permanent Washable Air Filter - 1 Pack
21 1/2" x 21 1/2" x 1" MERV 4 - Residential Washable Air Filter Residential Washable Air Filter:21 1/2" x 21 1/2" x 1" MERV 4 - Residential Washable Air Filter MERV 11 - Pleated Air21 1 2" x 21 1 2" x 1" MERV 4 Residential Washable Air Filter 1 Pack Actual Dimensions: 21. 5" x 21. 5" x 3 4 These quality filters are built to last a lifetime. They are interchangeable with 1" disposable filters and can be used again and again. The secret behind the filter's performance is its patented stage loading peak and valley design. Instead of face loading (particles captured on the outer surface of the filter) the filter uses stage loading,
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