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 + Product Details Size –

+ Product Details Size – 12" X 2" is the size for the duct opening (floor/vent hole) measurement only

Actual Filter Size – 17 3/4"w x 25 3/4" x 1"

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

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

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

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 + Product Details Size –+ 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