14"W X 36"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 15.75"W X 37.75"H] Aluminum We carry sizes the big

We carry sizes the big box stores don't

and slashes energy costs

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+ Product Details Size – 8" x 20" or 20" x 8" is the size for the duct opening measurement only

Both lines taped together every 18in for easier handling & installation

14"W X 36"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 15.75"W X 37.75"H] Aluminum We carry sizes the big+ Product Details Size 14"w X 36"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" width X 37. 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