The Southbend 1179998 Range Knob is a durable oven thermostat control knob designed to precisely regulate oven temperature settings from Off to Low (L0), then 250°F to 500°F. Featuring a clear temperature scale and sturdy construction, it is built for commercial kitchen use and fits securely with a mount size of 11/16" and a diameter of 1-15/16". This control knob allows for accurate ... https://partsfe.com/dial1-78-d-off-low-250-500-for-southbend-part-1179998