4"W X 36"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 5.75"W X 37.75"H] 18" Diameter High Quality – Polished pre-finish

High Quality – Polished pre-finish gloss varnish ready to install - can also be sanded and re-finished according to application needs

+ Product Details Size – 18" Corner Baseboard Grille - White - HVAC corner vent cover

For a visual guide on how to measure your vent hole before ordering a grille

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875" width X 25

4"W X 36"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 5.75"W X 37.75"H] 18" Diameter High Quality – Polished pre-finish+ Product Details Size 4"w X 36"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 75" width X 37. 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.