36"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 37.75"W X 17.75"H] Color_R-8.0 Pink And Meets/Beats ASTM B280 Standard

And Meets/Beats ASTM B280 Standard

How to Measure Your Vent Hole Before Ordering a Grille

+ Product Details Size - 18"w X 22"h is the size for the duct opening measurement only

Energy Efficient – Air-tight inner core decreases the pressure loss and provides a more hygienic environment - high energy efficient / No fiberglass erosion into air stream

+ Product Details Size - 30"w X 4"h is the size for the duct opening measurement only

36"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 37.75"W X 17.75"H] Color_R-8.0 Pink And Meets/Beats ASTM B280 Standard+ Product Details Size 36"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 37. 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