If your application requires temperature sensing

including the necessary #57 drill size burner orifices and a heavy-duty regulator spring

Does this kit include the necessary gaskets or seals

Thermal Overload Protection: Integrated internal protection prevents burnout during voltage fluctuations or restricted airflow conditions

mixing them will cause hazardous combustion conditions

McDonnell & Miller 343200 Bellows Assembly 30067439-890 If your application requires temperatureThe McDonnell & Miller 343200 Bellows Assembly (Model SA63 5) is the critical mechanical linkage used in Series 63 low water cut offs. As a veteran grade replacement component, this assembly mediates the movement between the internal float and the electrical switch, ensuring the heavy duty performance required for commercial and industrial steam boiler safety. This genuine OEM replacement part includes the bellows, the CO 106 cam assembly, and the CO