14" X 4" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 5.75"H] w32h32 + Product Details Size –

+ Product Details Size – 20"w X 8"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 14 5/8" width X 18 5/8" height

Actual Filter Size – 7 3/4"w x 5 3/4" x 1"

2 recessed screw holes on each side with screws included

actual front end outer dimensions are approximately 20 5/8" width X 338 5/8" height

14" X 4" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 5.75"H] w32h32 + 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