20"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 21.75"W X 17.75"H] flat stamped steel polished appearance that adds elegance

polished appearance that adds elegance to any room

+ Product Details Size - 18"w X 18"h is the size for the duct opening measurement only

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

Click Add to Cart now & enjoy a new updated refreshing look of your room

5" - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE

20"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 21.75"W X 17.75"H] flat stamped steel polished appearance that adds elegance+ Product Details Size 20"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 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