14" X 12" [Duct Opening] 2-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 13.75"H] w25h25 + Product Details Size –

+ Product Details Size – 34"w X 30"h is the size for the duct opening measurement only

sans-serif

All of these grills have dampers

For added versatility

Actual Filter Size – 13 3/4"w x 19 3/4" x 1"

14" X 12" [Duct Opening] 2-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 13.75"H] w25h25 + Product Details Size –+ 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