12"W X 6"H [Duct Opening] Never Rust Plastic 3-Way-Vertical Air Supply Register - HVAC Vent Duct Grille - Off White [Outer Dimensions: 13.75"W X 7.75"H] RG66 Black-HP justify-content: center

justify-content: center

The total outer size of this grille is the listed size plus 1

Think of the diameter as a straight line from one end to the other

+ Product Details Size - 30"w X 30"h X 2"d (for duct opening measurement only)

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12"W X 6"H [Duct Opening] Never Rust Plastic 3-Way-Vertical Air Supply Register - HVAC Vent Duct Grille - Off White [Outer Dimensions: 13.75"W X 7.75"H] RG66 Black-HP justify-content: center+ Product Details Size 12"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 7. 75" height. Design Rigid gauge ABS plastic. Rigid gauge built for durability and long life in mind, but still light and handy. Powder coat finish. Smooth, scratch resistant, beautiful. Looks like new after years of use. Screws Included High Quality High quality ABS plastic will never rust, no sharp