12"w X 8"h [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 9.75"H] 6in diameter actual front end outer dimensions

actual front end outer dimensions are approximately 32 5/8" width X 14 5/8" height -

actual front end outer dimensions are approximately 32 5/8" width X 26 5/8" height -

Actual Filter Size – 19 3/4"w x 29 3/4" x 1"

875" width X 20" height

+ Product Details Size – 25"w X 6"h is the size for the duct opening measurement only

12"w X 8"h [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 9.75"H] 6in diameter actual front end outer dimensions+ Product Details Size 12"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 9. 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