18"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 19.75"W X 21.75"H] Ceiling Our innovative adjustable design changes

Our innovative adjustable design changes the game

85" width X 9

Conveniently taped together as a single piece

Powder-Coat Finish – Never rust

Tough reinforced metallized polyester jacket - tear and puncture resistant

18"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 19.75"W X 21.75"H] Ceiling Our innovative adjustable design changes+ Product Details Size 18"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 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