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

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

you're covered by our 100% Money Back Guarantee

+ Product Details Size - 30"w X 18"h is the size for the duct opening measurement only

and centralized air ducted units

+ Product Details Size – 20"w X 36"h is the size for the duct opening measurement only

10" X 12" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 12 5 8" X 14 5 8"] Supply Grille actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in actual front end outer dimensions are approximately 10 5 8" width X 8 5 8" height you're covered by our 100% Money Back Guarantee