12" X 10" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 11.75"H] 1-Way + Product Details Size -

+ Product Details Size - 22"w X 30"h is the size for the duct opening measurement only

this flex duct decreases the pressure loss and provides a more hygienic environment

Actual Filter Size – 29 3/4"w x 31 3/4" x 1"

padding: 14px 14px

actual front end outer dimensions are approximately 38 5/8" width X 10 5/8" height

12" X 10" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 11.75"H] 1-Way + Product Details Size -+ Product Details Size 12"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 11. 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