36"W X 32"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 37.75"W X 33.75"H] w16h16 + Product Details Size - Suitable for all AC 8in diameter 12125SDCLNGBX

+ Product Details Size - 22"w X 30"h is the size for the duct opening measurement only

+ Product Details Size - 24"w X 6"h is the size for the duct opening measurement only

Installation Location – Floor

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36"W X 32"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 37.75"W X 33.75"H] w16h16 + Product Details Size Suitable for all AC 8in diameter 12125SDCLNGBX + Product Details Size 22"w X 30"h is the size for the duct opening measurement only + Product Details Size 24"w X 6"h is the size for the duct opening measurement only