The Imperial 2721 Oven Burner Valve Knob provides convenient on/off control for compatible commercial oven burner valves. Designed with a chrome finish and a 2-3/8-inch diameter, the knob fits onto the valve stem and allows operators to turn the burner setting on or off through a simple rotation. A properly fitted knob supports easier handling of the oven controls and helps operators ... https://partsfe.com/knob-imperial-for-imperial-part-2721