20"W X 12"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 21.75"W X 13.75"H] fixed bar + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 24"w X 12"h is the size for the duct opening measurement only

+ Product Details Size - 32"w X 25"h is the size for the duct opening measurement only

Our grilles feature a durable powder-coat finish

+ Product Details Size - 30"w X 26"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 9

20"W X 12"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 21.75"W X 13.75"H] fixed bar + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 24"w X 12"h is the size for the duct opening measurement only + Product Details Size 32"w X 25"h is the size for the duct opening measurement only