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] Color_R-8.0 Pink + Product Details Size –

+ Product Details Size – 25"w X 28"h is the size for the duct opening measurement only

Its generous size and universal design ensure a perfect fit for a wide range of thermostat models

+ Product Details Size - 36"w X 16"h is the size for the duct opening measurement only

Roundover Beveled Edges

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] Color_R-8.0 Pink + 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