12" X 8" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 10 5/8"] w12h12 actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in

actual front end outer dimensions are approximately 16 5/8" width X 20 5/8" height

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

box-shadow: 0 2px 4px rgba(0

+ Product Details Size - 16"w X 12"h is the size for the duct opening measurement only

padding: 14px 14px 6px 46px

12" X 8" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 14 5 8" X 10 5 8"] w12h12 actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in actual front end outer dimensions are approximately 16 5 8" width X 20 5 8" height + Product Details Size 10"w X 10"h is the size for the duct opening measurement only