32" X 26" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 34 5/8" X 28 5/8"] 18" Round Duct Pipe actual front end outer dimensions 7" Round Duct Pipe CRG828 Product Details Size 14

actual front end outer dimensions are approximately 27 5/8" width X 32 5/8" height

+ Product Details Size - 26"w X 22"h is the size for the duct opening measurement only

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+ Product Details Size - 34"w X 20"h is the size for the duct opening measurement only

+ Product Details Size – 14"w X 10"h is the size for the duct opening measurement only

32" X 26" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 34 5 8" X 28 5 8"] 18" Round Duct Pipe actual front end outer dimensions 7" Round Duct Pipe CRG828 Product Details Size 14 actual front end outer dimensions are approximately 27 5 8" width X 32 5 8" height + Product Details Size 26"w X 22"h is the size for the duct opening measurement only