The Alto-Shaam ALTTT3057 thermostat regulates temperature by responding to changes sensed through its bulb and capillary assembly. The 3/16" X 15-3/8" bulb and 42" capillary dimensions help identify the correct component during service and parts selection. Accurate thermostat operation supports consistent heating control in compatible commercial foodservice equipment. Before ordering,... https://partsfe.com/alttt3057-thermostat-b10-3-16-x-15-3-8-36