20"W X 4"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 21.75"W X 5.75"H] Adjustable Return + Product Description Upgrade your

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

+ Product Details Size – 24"w X 6"h is the size for the duct opening measurement only

Choose our premium HVAC grilles and registers for long-lasting durability

Our coils have a very high PSI burst pressure

much more than required 700 PSI for R410

20"W X 4"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 21.75"W X 5.75"H] Adjustable Return + Product Description Upgrade your+ Product Details Size 20"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 75" width X 5. 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.