12"w X 6"h [Duct Opening] 3-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 7.75"H] Compatible With Duct 8in + Product Details Size –

+ Product Details Size – 25"w X 10"h is the size for the duct opening measurement only

+ Product Details Size – 16"w X 8"h is the size for the duct opening measurement only

Screws Included

+ Product Details Size - 22"w X 10"h X 2"d (for duct opening measurement only)

Design – Removable face for cleaning and access to damper - wooden damper for airflow shutoff control

12"w X 6"h [Duct Opening] 3-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 7.75"H] Compatible With Duct 8in + Product Details Size –+ 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. 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