The Tri-Star TS-1150 Oven Thermostat with By-Pass Adjacent at Top and Gas Inlet Down, Bulb 3/16" x 11-3/16", 500°F regulates gas flow to maintain the selected temperature in compatible commercial ovens. As the sensing bulb detects changes in oven temperature, the thermostat adjusts the gas supply to the burner, while the bypass arrangement supports proper low-flame control during oper... https://partsfe.com/ts-1150-tri-star-thermostat-bjwa-316-x-11-316-48