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] 10" Diameter actual front end outer dimensions

actual front end outer dimensions are approximately 30 5/8" width X 18 5/8" height

Actual Front End Outer Dimensions Are 10" Diameter

Actual Filter Size – 25 3/4"w x 33 3/4" x 1"

Installation Location – sidewall and ceiling

with actual outer dimensions of 22

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] 10" Diameter actual front end outer dimensions+ 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