14" X 12" [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 13.75"H] Color_Red Oak Wood + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 20" duct opening (measured at the opening)

6" x 6" - 4-Way Curved Blade Supply Air Grille - Maximum Air Flow - HVAC Vent Cover

+ Product Details Size - 36"w X 34"h is the size for the duct opening measurement only

+ Product Details Size - 20"w X 8"h is the size for the duct opening measurement only

Measuring 8" in diameter for the duct opening

14" X 12" [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 13.75"H] Color_Red Oak Wood + Product Details Perfect Fit+ Product Details Size 14"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" width X 13. 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