The Pitco 60124501 Fryer Thermostat is an essential part that controls the temperature of the oil between 200°F and 400°F. With the 3/8” x 5” bulb and 36” cap, this thermostat helps to keep the temperature optimal for cooking, making the process faster and food better. https://partsfe.com/60124501-pitco-thermostat-rx-38-x-5-36