14"w X 6"h [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 7.75"H] Black + Product Details Size –

+ Product Details Size – 36"w X 10"h is the size for the duct opening measurement only

+ Product Details Size – 16"w X 30"h is the size for the duct opening measurement only

making it ideal for preventing tampering or unauthorized adjustments

actual front end outer dimensions are approximately 32 5/8" width X 26 5/8" height -

These are built heavy duty for installation into brick and cement walls

14"w X 6"h [Duct Opening] 3-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 7.75"H] Black + Product Details Size –+ Product Details Size 14"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 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