12" X 12" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 13.75"H] w25h25 + Product Details Size –

+ Product Details Size – 28"w X 30"h is the size for the duct opening measurement only

5/8” - 2579 PSI

complete with a set of sponge gasket and mounting frame

+ Product Details Size - 30"w X 12"h X 2"d (for duct opening measurement only)

+ Product Details Size – 6"w X 10"h is the size for the duct opening measurement only

12" X 12" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 13.75"H] w25h25 + Product Details Size –+ 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