20"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 21.75"W X 17.75"H] 18" Round Duct Pipe will change the appearance of

will change the appearance of the entire room

Whether you choose the modern contemporary

+ Why Hvac Premium HVAC Premium has been providing superior quality service for many years

4" X 10" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

Refrigerant - 1/2" White Insulation - 50' Long

20"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 21.75"W X 17.75"H] 18" Round Duct Pipe will change the appearance of+ Product Details Size 20"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 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