12"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 21.75"H] Black Its polished pre-finish gloss varnish

Its polished pre-finish gloss varnish not only adds to its appeal but also ensures easy installation

+ Product Details Size – 36"w X 8"h is the size for the duct opening measurement only

How to Measure Your Vent Hole Before Ordering a Grille

High Quality – High-quality rust-free

Operating temperature from -40°f to +248°f [-40°c to +120°c]

12"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 21.75"H] Black Its polished pre-finish gloss varnish+ Product Details Size 12"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 21. 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