14" X 14" [Duct Opening] 2-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 15.75"H] Aluminum Adjustable Curved Blade + Product Details Size –

+ Product Details Size – 28"w X 10"h is the size for the duct opening measurement only

+ Product Details Size - 30"w X 28"h is the size for the duct opening measurement only

actual front end outer dimensions are 11

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Actual Filter Size – 29 3/4"w x 9 3/4" x 1"

14" X 14" [Duct Opening] 2-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 15.75"H] Aluminum Adjustable Curved Blade + Product Details Size –+ Product Details Size 14"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" width X 15. 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