12" X 12" [Duct Opening] 2-Way Vertical Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 13.75"H] Compatible With Duct 6in + Product Details Size -

+ Product Details Size - 28"w X 4"h is the size for the duct opening measurement only

+ Product Details Size – 10"w X 6"h is the size for the duct opening measurement only

Its sleek contours bring a touch of modern sophistication to any room

Perfectly suited for both residential and commercial use

12" X 12" [Duct Opening] 2-Way Vertical Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 13.75"H] Compatible With Duct 6in + Product Details Size -+ Product Details Size 12"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 13. 75" height. High Quality High quality steel with counter sunk screw holes (screws included) and no sharp edges. Equipped with a lever for easy airflow adjustment and dampening. Airflow Control Adjustable airflow lever allows precise control over the direction and volume of air. Installation