• Fits Summit (2012+) series gas grills • Includes 2 main knobs (order 2 sets for a 400 series or 3 sets for a 600 series) • Allows you to adjust your burner levels • Refer to your grill’s assembly guide for installation Please double check the specs and fits info to ensure that you’re choosing the best part for your grill. Questions? Our team of grilling experts are here to help: 800-446-1071 or support@weberstephen.com