20"W X 10"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 21.75"W X 11.75"H] Insulated Line which the interior PET provides

which the interior PET provides

querySelector('

And is classified as Class 1 Fire Proof - B1

and scratch-resistant surface that enhances the aesthetics of any room

+ Product Description When it's time to upgrade your HVAC Vents in your house

20"W X 10"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 21.75"W X 11.75"H] Insulated Line which the interior PET provides+ Product Details Size 20"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 75" width X 11. 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