30"W X 30"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 31.75"W X 31.75"H] Color_R-4.2 Yellow actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

actual front end outer dimensions are approximately 31

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

+ Product Details Size - 36"w X 30"h is the size for the duct opening measurement only

Width vs Height:

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30"W X 30"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 31.75"W X 31.75"H] Color_R 4.2 Yellow actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are approximately 31 + Product Details Size 30"w X 26"h is the size for the duct opening measurement only