14" X 12" [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 13.75"H] w36h36 Actual Filter Size – 7

Actual Filter Size – 7 3/4"w x 33 3/4" x 1"

Actual Filter Size – 24 3/4"w x 17 3/4" x 1"

Actual Filter Size – 35 3/4"w x 33 3/4" x 1"

High Quality – Commercial grade aluminum - will never rust - designed for warehouses

14" X 12" [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 13.75"H] w36h36 Actual Filter Size – 7+ Product Details Size 14"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 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