The APW 56428 Toaster Thermostat 1/4" Bulb 100-550°F regulates internal chamber temperatures to ensure precise, uniform browning across high-volume commercial toasters. This mechanical temperature control mechanism functions via an integrated capillary and sensing bulb filled with fluid that expands or contracts based on ambient heat, mechanically opening or closing internal electrica... https://partsfe.ca/56428-apw-thermostat-ka-14-x-5-916-72