The Franklin Chef 147573 Oven Thermostat delivers precise temperature regulation to ensure consistent baking results and optimal energy efficiency in your commercial kitchen. Featuring a 3/16\" x 11-5/8\" bulb and a 48\" capillary tube, this mechanical control works by utilizing an expanding liquid inside the sensing bulb to detect internal cavity temperatures, which triggers internal electrical contacts to turn the heating element on or off. Maintaining stable heat levels prevents undercooking or burning, directly reducing food waste and improving kitchen throughput.