10"w X 8"h [Duct Opening] 2-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 9.75"H] w40h40 + Product Details Size –

+ Product Details Size – 4"w X 24"h or 24" x 4" is the size for the duct opening measurement only

Ideal for Walls & Ceilings: Designed for seamless installation in standard 6" X 4" duct openings

ensuring durability in temperatures ranging from -40℃ to 120℃

please note that the total outer dimensions of the grille measure 6" in diameter

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10"w X 8"h [Duct Opening] 2-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 9.75"H] w40h40 + 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