28"W X 28"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 29.75"W X 29.75"H] w12h12 75" width X 29

75" width X 29

the second number represents the height

+ Product Details Size - 14"w X 36"h is the size for the duct opening measurement only

Designed for optimal air flow and lasting durability

+ Product Details Size - 12"w X 20"h is the size for the duct opening measurement only

28"W X 28"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 29.75"W X 29.75"H] w12h12 75" width X 29+ Product Details Size 28"w X 28"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 75" width X 29. 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