8" X 8" [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 9.75"W X 9.75"H] w18h18 Secure Locking Mechanism – Features

Secure Locking Mechanism – Features a permanently attached eight-tumbler lock with a supplied key for added security

+ Product Details Size – 10"w X 8"h is the size for the duct opening measurement only

During summer

+Product Details Size – 2"h x 12"w is the size for the duct opening measurement only

8" X 8" [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 9.75"W X 9.75"H] w18h18 Secure Locking Mechanism – Features+ Product Details Size 8"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" width X 9. 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 Location