12" X 12" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 13.75"H] Aluminum Adjustable Curved Blade + Product Details Size -

+ Product Details Size - 25"w X 16"h is the size for the duct opening measurement only

this thermostat guard is compatible with most standard thermostat models

Installation Location – Suitable for both sidewall and ceiling installation

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

and smooth surface for years to come

12" X 12" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 13.75"H] Aluminum Adjustable Curved Blade + Product Details Size -+ 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