Full 360 degree rotation. Installation is made easy with molded tabs that eliminate clamps and widely spaced mounting holes that anchor securely. With just a quarter turn, the center knob smoothly opens or shuts the vent wings. Air flow is not restricted when open and the vent shutoff does not affect the rotation of the grill.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov