20" X 6" [Duct Opening] 2-Way Vertical Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 21.75"W X 7.75"H] w12h12 actual front end outer dimensions

actual front end outer dimensions are approximately 30 5/8" width X 24 5/8" height

Designed to seamlessly integrate with T-Bar vent covers in drop ceiling setups

line-height: 22px

this thermostat guard is compatible with most standard thermostat models

20" X 6" [Duct Opening] 2-Way Vertical Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 21.75"W X 7.75"H] w12h12 actual front end outer dimensions+ Product Details Size 20"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 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