12"w X 8"h [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 9.75"H] Return actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in

actual front end outer dimensions are approximately 30 5/8" width X 34 5/8" height

+ Product Details Size – 14"w X 8"h is the size for the duct opening measurement only

+ Product Details Size - 14"w X 25"h is the size for the duct opening measurement only

+ Product Details Size – 10" x 26" or 26" x 10" is the size for the duct opening measurement only

Actual Filter Size – 7 3/4"w x 5 3/4" x 1"

12"w X 8"h [Duct Opening] 1 Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 9.75"H] Return actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in actual front end outer dimensions are approximately 30 5 8" width X 34 5 8" height + Product Details Size – 14"w X 8"h is the size for the duct opening measurement only