30"W X 24"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 31.75"W X 25.75"H] w30h30 + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 24"w X 10"h is the size for the duct opening measurement only

Measure the size of the air duct/drywall opening

+ Product Details Size - 22"w X 4"h is the size for the duct opening measurement only

+ Product Details Size – 12"w X 18"h is the size for the duct opening measurement only

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30"W X 24"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 31.75"W X 25.75"H] w30h30 + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 24"w X 10"h is the size for the duct opening measurement only Measure the size of the air duct drywall opening