10"w X 6"h [Duct Opening] 3-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 7.75"H] 10" Diameter + Product Details Size -

+ Product Details Size - 36"w X 36"h X 2"d (for duct opening measurement only)

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 20" duct openings

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 32" OR 32" x 30" duct opening (measured at the opening)

+ Product Details Size - 30"w X 6"h Is The Size For The Duct Opening Measurement Only

Durable and Long-Lasting – Built with high-impact clear plastic and premium materials for dependable performance

10"w X 6"h [Duct Opening] 3-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 7.75"H] 10" Diameter + Product Details Size -+ Product Details Size 10"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 75" width X 7. 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