14"w X 6"h [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 7.75"H] 12" Diameter + Product Details Size –

+ Product Details Size – 28"w X 22"h is the size for the duct opening measurement only

Install 2 Vents

Actual Filter Size – 29 3/4"w x 19 3/4" x 1"

+ Product Details Size - 6"w X 28"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 38 5/8" width X 18 5/8" height -

14"w X 6"h [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 7.75"H] 12" Diameter + Product Details Size –+ Product Details Size 14"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 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