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18" x 22" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack
16 3/8" x 21 1/2" x 1" MERV 6 - Fiberglass Air Filter - 6 Pack
12" x 16" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack
20" x 30" x 1" MERV 6 - Fiberglass Air Filter - 6 Pack
19 1/8" x 19 3/8" x 1" MERV 8 - Premium Pleated Air Filter - 6 Pack
30" x 36" x 1" MERV 4 - Residential Washable Air Filter 24w 18" x 22" x 1"30" x 36" x 1" MERV 4 Residential Washable Air Filter 1 Pack Actual Dimensions: 30" x 36" 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, with each
