30"W X 2"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 31.75"W X 3.75"H] Grilles Conveniently taped together as a

Conveniently taped together as a single piece

Insulation density is 30kgs/cbm = 0

+ Product Details Size – 12"w X 4"h is the size for the duct opening measurement only

reducing electric bills and extending HVAC machine lifespan

3/4" - 2981 PSI

30"W X 2"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 31.75"W X 3.75"H] Grilles Conveniently taped together as a+ Product Details Size 30"w X 2"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 75" width X 3. 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.