14" X 4" [Duct Opening] 2-Way Vertical Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 5.75"H] Compatible with Duct 6" + Product Details Size -

+ Product Details Size - 14"w X 34"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 24 5/8" width X 14 5/8" height

+ Product Description Upgrade your ventilation with our premium grilles and registers

Optional Butterfly Damper Available At Asin: B007CNEL1W

+ Product Details Size - 28"w X 10"h is the size for the duct opening measurement only

14" X 4" [Duct Opening] 2-Way Vertical Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 5.75"H] Compatible with Duct 6" + Product Details Size -+ Product Details Size 14"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" width X 15. 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