18" X 6" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 19.75"W X 7.75"H] w30h30 + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 20" OR 20" X 14" duct opening (measured at the opening)

75" width X 25

40"w X 16"h Is The Size For The Duct Opening Measurement Only

allowing you to update the aesthetic in your home without losing valuable seasonal control of your HVAC system

actual front end outer dimensions are approximately 38 5/8" width X 32 5/8" height -

18" X 6" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 19.75"W X 7.75"H] w30h30 + Product Details Perfect Fit+ Product Details Size 18"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 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