10"W X 18"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 11.75"W X 19.75"H] Supply Grille box-shadow: 0 2px 4px rgba(0

box-shadow: 0 2px 4px rgba(0

+ Product Details Size - 32"w X 28"h is the size for the duct opening measurement only

Slots are angled to diversify the airflow in 2 way direction

+ Product Details Size – 20"w X 10"h is the size for the duct opening measurement only

+ Product Details Size – 12"w X 4"h is the size for the duct opening measurement only

10"W X 18"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 11.75"W X 19.75"H] Supply Grille box-shadow: 0 2px 4px rgba(0+ Product Details Size 10"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 75" width X 19. 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