The Cleveland KE50569-1 Potentiometer Knob 1-1/8" DIA is a rotary control knob used with compatible commercial cooking equipment for adjusting potentiometer settings. Turning the knob changes the position of the connected potentiometer, allowing the equipment control to be set according to the required operating level. Its 1-1/8-inch diameter provides a compact grip for manual adjustm... https://partsfe.com/knob1-18-d-pointer-for-cleveland-part-ke50569-1