36"W X 10"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 37.75"W X 11.75"H] Color_Black provides a modern look and 18" Round Duct Pipe Fixed 45 horizontal blades LO1810

provides a modern look and quiet operation due to its half-inch by half-inch cube design

actual front end outer dimensions are approximately 33

+ Product Details Size - 18"w X 28"h is the size for the duct opening measurement only

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Versatility and Durability: The red oak wood not only adds a touch of warmth and softness to your room but can also be sanded and refinished according to your specific application needs

36"W X 10"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 37.75"W X 11.75"H] Color_Black provides a modern look and 18" Round Duct Pipe Fixed 45 horizontal blades LO1810 provides a modern look and quiet operation due to its half inch by half inch cube design actual front end outer dimensions are approximately 33