10"w X 6"h [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 7.75"H] return grille actual front end outer dimensions

actual front end outer dimensions are approximately 30 5/8" width X 8 5/8" height

order a 14x20

High quality – high quality solid stamped steel with counter-sunk screw holes (screws included) and no sharp edges

R value rating of insulation - R3

+ Product Details Size - 36"w X 24"h is the size for the duct opening measurement only

10"w X 6"h [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 7.75"H] return grille actual front end outer dimensions+ 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