4" X 25' - Round Duct Sheet Metal Pipe [5pcs 5'] Filter Grille + Product Details Size - 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size - 22"w X 12"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 12 5/8" width X 34 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 6" OR 6" x 24" duct opening (measured at the opening)

5" Wide x 12" Tall x 2

+ Product Details Size & Compatibility – The size of the side round ceiling box is 12" X 12" X 12" and it is compatible with duct 12"

4" X 25' Round Duct Sheet Metal Pipe [5pcs 5'] Filter Grille + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 22"w X 12"h is the size for the duct opening measurement only actual front end outer dimensions are approximately 12 5 8" width X 34 5 8" height