8"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 9.75"W X 17.75"H] White accordion-container { border: 1px solid

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you can watch this informative video tutorial: How to Measure Your Vent Hole Before Ordering a Grille

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4" X 12" Brass Victorian Floor Register Grille - Modern Contempo Decorative Grate - HVAC Vent Duct Cover - Brass Plated

Upgrade your HVAC system with a high-quality aluminum return grille designed for a clean

8"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 9.75"W X 17.75"H] White accordion-container { border: 1px solid+ Product Details Size 8"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" width X 17. 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.