14"W X 8"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 15.75"W X 9.75"H] Return + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 20"w X 24"h is the size for the duct opening measurement only

+ Product Details Size - 14"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 12"w X 4"h is the size for the duct opening measurement only

rust-free aluminum construction with smooth finished edges and counter-sunk screw holes (screws included)

+ Product Details Size - 4"w X 16"h is the size for the duct opening measurement only

14"W X 8"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 15.75"W X 9.75"H] Return + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 20"w X 24"h is the size for the duct opening measurement only + Product Details Size 14"w X 12"h is the size for the duct opening measurement only