14"w X 8"h [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 9.75"H] Fixed Blades with Damper + Product Details Size -

+ Product Details Size - 30"w X 18"h is the size for the duct opening measurement only

5/8” - 2579 PSI

The total outer size of this grille is the listed size plus 3"

actual front end outer dimensions are approximately 38 5/8" width X 26 5/8" height -

14"w X 8"h [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 9.75"H] Fixed Blades with Damper + Product Details Size -+ Product Details Size 14"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 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