6" x 6" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 9" x 9"] Aluminum - Cube Core actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in

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

+ Product Details Size - 32"w X 22"h is the size for the duct opening measurement only

+ Product Details Size - 20"w X 8"h is the size for the duct opening measurement only

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+ Product Details Size – 26"w X 22"h is the size for the duct opening measurement only

6" x 6" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever Operated Damper for Air Flow Control [Outer Dimensions: 9" x 9"] Aluminum Cube Core actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in actual front end outer dimensions are approximately 28 5 8" width X 8 5 8" height + Product Details Size 32"w X 22"h is the size for the duct opening measurement only