6"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 7.75"W X 21.75"H] Aluminum during winter

during winter

adds a touch of sophistication to any room

+ Product Details Size - 18"w X 12"h is the size for the duct opening measurement only

customize cuts and flares as needed

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6"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 7.75"W X 21.75"H] Aluminum during winter+ Product Details Size 6"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" width X 21. 75" height. Design Easy unrestricted airflow for your HVAC system 50 angled to provide maximum airflow. High Quality Solid stamped steel with counter sunk screw holes (screws included) and no sharp edges. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just waxed.