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] w16h16 Actual Filter Size – 29

Actual Filter Size – 29 3/4"w x 11 3/4" x 1"

+ Product Details Size – 18"w X 32"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 41

and the second number represents the height

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] w16h16 Actual Filter Size – 29+ 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