16" X 6" [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 17.75"W X 7.75"H] White + Product Details Size -

+ Product Details Size - 25"w X 34"h is the size for the duct opening measurement only

+ Product Details Size – 12"w X 14"h is the size for the duct opening measurement only

Actual Filter Size – 31 3/4"w x 23 3/4" x 1"

+ Product Details Size – 8"w X 12"h is the size for the duct opening measurement only

16" X 6" [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 17.75"W X 7.75"H] White + Product Details Size -+ Product Details Size 16"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" width X 7. 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