16" X 16" [Duct Opening] 4-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 17.75"W X 17.75"H] Compatible With Duct 6in + Product Details Size –

+ Product Details Size – 34"w X 14"h is the size for the duct opening measurement only

+ Product Details Size – 18"w X 8"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 32 5/8" width X 8 5/8" height

complete with a set of sponge gasket and mounting frame

Actual Filter Size – 27 3/4"w x 5 3/4" x 1"

16" X 16" [Duct Opening] 4-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 17.75"W X 17.75"H] Compatible With Duct 6in + Product Details Size –+ Product Details Size 16"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" width X 17. 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