12" X 12" [Duct Opening] 2-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 13.75"H] Adjustable Return With HVAC Premium you get

With HVAC Premium you get an extra measure of quality that will be visible to your family members and house guests

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+ Product Details Size – 16"w X 10"h is the size for the duct opening measurement only

12"w X 3"h Is The Size For The Duct Opening Measurement Only

High Quality – Solid rigid steel body for durability and reliability with dampers operable by switch for airflow directional control

12" X 12" [Duct Opening] 2-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 13.75"H] Adjustable Return With HVAC Premium you get+ Product Details Size 12"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 13. 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