8" X 36" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 10 5/8" X 38 5/8"] White we have assisted countless contractors MFFG810-1 Actual Filter Size 9 flat stamped steel

we have assisted countless contractors

+ Product Details Size - 24"w X 12"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 28 5/8" width X 10 5/8" height

actual front end outer dimensions are approximately 24 5/8" width X 31 5/8" height

+ Product Details Size - 16"w X 25"h is the size for the duct opening measurement only

8" X 36" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 10 5 8" X 38 5 8"] White we have assisted countless contractors MFFG810 1 Actual Filter Size 9 flat stamped steel we have assisted countless contractors + Product Details Size 24"w X 12"h is the size for the duct opening measurement only