10"w X 6"h [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 7.75"H] Aluminum - Cube Core Versatile Compatibility: Our ceiling grills

Versatile Compatibility: Our ceiling grills aren't limited to just T bar drop ceilings

Actual Filter Size – 31 3/4"w x 21 3/4" x 1"

Measuring 6" in diameter for the duct opening

this grille boasts a natural warmth and fine finish

10"w X 6"h [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 7.75"H] Aluminum - Cube Core Versatile Compatibility: Our ceiling grills+ 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