750mm Gas Thermocouple Replacement for Water Heater

 Note:

        Thermocouple heated part must be heating on tip 3 to 5mm. pls do not put tip into flame,it will be arouse electric decline and life short.Keep radiating well for thermocouple fixed place backer and plus-minus thread. Decline the accumulative  heat of fix broad and thermocouple copper coat.It is benificial to the closing valve time.