14"W X 8"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 9.875"H] 8in diameter actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

actual front end outer dimensions are approximately 30 5/8" width X 12 5/8" height

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

+ Product Details Size - The listed 10" diameter refers specifically to the size of the duct opening

+ Product Details Size – 28"w X 16"h is the size for the duct opening measurement only

Outer Dimensions Are 17

14"W X 8"H [Duct Opening] ALUMINUM RETURN GRILLE EASY AIR FLOW LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 9.875"H] 8in diameter actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are approximately 30 5 8" width X 12 5 8" height + Product Details Size 12" X 12" is the size for the duct opening measurement only