6"W X 18"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 7.75"W X 19.75"H] Adjustable Return 4" X 12" Is The Product Description Enhance your CRFG68 Victorian Floor Registers

4" X 12" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

+ Product Details Size - 4"w X 20"h is the size for the duct opening measurement only

Its sleek contours bring a touch of modern sophistication to any room

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+ Product Details Size - 32"w X 25"h is the size for the duct opening measurement only

6"W X 18"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 7.75"W X 19.75"H] Adjustable Return 4" X 12" Is The Product Description Enhance your CRFG68 Victorian Floor Registers 4" X 12" Is The Size For The Duct Opening (floor vent hole) Measurement Only + Product Details Size 4"w X 20"h is the size for the duct opening measurement only