30"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 31.75"W X 21.75"H] flat stamped steel How to Measure Your Vent

How to Measure Your Vent Hole Before Ordering a Grille

font-weight: 500

+ Product Details Size - 4"w X 10"h is the size for the duct opening measurement only

Pre-flared ends with nuts are for simple and easy installation

Don’t worry

30"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 31.75"W X 21.75"H] flat stamped steel How to Measure Your Vent+ Product Details Size 30"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 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