30"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 31.75"W X 17.75"H] Insulated Line + Product Description This aluminum

+ Product Description This aluminum flex duct is intended to be used in heating

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including Ductless Mini-Split

+ Why HVAC Premium

30"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 31.75"W X 17.75"H] Insulated Line + Product Description This aluminum+ Product Details Size 30"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 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