36"W X 24"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 37.75"W X 25.75"H] Ceiling Available in both standard and Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

Available in both standard and custom sizes

+ Product Details Size – 10" X 4" is the size for the duct opening (floor/vent hole) measurement only

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+ Product Details Size - 36"w X 4"h is the size for the duct opening measurement only

+How To Measure A Grille Overall Size:

36"W X 24"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 37.75"W X 25.75"H] Ceiling Available in both standard and Compatible With Duct 7in Applications This sheet metal DDAG A 1212 Available in both standard and custom sizes + Product Details Size – 10" X 4" is the size for the duct opening (floor vent hole) measurement only