32"W X 28"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 33.75"W X 29.75"H] Filter Grille Design – Designed to withstand Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

Design – Designed to withstand bends and sharp turns without kinking

+ Product Details Size - 25"w X 28"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 24" or 24" x 12" duct opening (measured at the opening)

+ Product Details Size - 28"w X 30"h is the size for the duct opening measurement only

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32"W X 28"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 33.75"W X 29.75"H] Filter Grille Design – Designed to withstand Compatible With Duct 7in Applications This sheet metal DDAG A 1212 Design – Designed to withstand bends and sharp turns without kinking + Product Details Size 25"w X 28"h is the size for the duct opening measurement only