10"w X 8"h [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 9.75"H] Curved Blade Steel These Supply Diffusers with integral

These Supply Diffusers with integral round necks are recommended for heating

The total outer size of this grille is the listed size plus 2 and 5/85"

+ Product Details Size - 36"w X 18"h is the size for the duct opening measurement only

+ Product Details Size - 25"w X 30"h is the size for the duct opening measurement only

+ Product Details Size - 32"w X 25"h is the size for the duct opening measurement only

10"w X 8"h [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 9.75"H] Curved Blade Steel These Supply Diffusers with integral+ Product Details Size 10"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 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