30" X 32" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 32 5/8" X 34 5/8"] 6" Diameter actual front end outer dimensions Insulation Black Foam Tape Sheet Metal/Adjustable Elbow CRG1234

actual front end outer dimensions are approximately 28 5/8" width X 32 5/8" height

+ Product Details Size - 12"w X 20"h is the size for the duct opening measurement only

+ Product Details Size – 24"w X 36"h is the size for the duct opening measurement only

+ Product Details Size - 10"w X 28"h is the size for the duct opening measurement only

30" X 32" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 32 5 8" X 34 5 8"] 6" Diameter actual front end outer dimensions Insulation Black Foam Tape Sheet Metal Adjustable Elbow CRG1234 actual front end outer dimensions are approximately 28 5 8" width X 32 5 8" height + Product Details Size 12"w X 20"h is the size for the duct opening measurement only