20" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 22 5/8" X 20 5/8"] Material_Steel + Product Details Perfect Fit 4 X 12 Is CRFG2028 Width_14in
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Description
20" X 18" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 22 5 8" X 20 5 8"] Material_Steel + Product Details Perfect Fit 4 X 12 Is CRFG2028 Width_14in + Product Details Perfect Fit & Easy Sizing Designed for a 12" x 24" or 24" x 12" duct opening (measured at the opening) Actual Filter Size – 19 3 4"w x 24 3 4" x 1"