[Wide Compatibility]: This gas heater repair and replacement part is suitable for propane heaters, Firesense patio heaters and thermoelectric gas heaters with thermoelectric safety room gas heaters, outdoor patio heaters and other gas heaters. thermoelectric gas [Thermoelectric safety device]: the spare parts of the water heater work with a solenoid valve to prevent accidents, once gas leakage and gas combustion appear, it can turn off [Convenient spare parts]: designed for temperature detection and measurement; Thermopile is very simple and convenient to use; Durable replacement thermocouple saves money and time [With nuts]: 900mm with five nuts gas thermocouple gas valve, easy to install [Long Lasting]: The patio heater parts thermocouple is made of high quality brass materials; Probe Size: about 6.2?x?0.6?cm/2.4?x?0.2?in (L*W)