A thermocouple is a device that is made of two different metals that produce a charge when heated on one side. This small electrical charge switches on an electromagnet which opens a valve and allows the water or gas to flow through ..
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Technical Specifications
Toilet Cistern CapacityFTW--Supplier Part Number727064Brand NameBlack Teknigas
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Black Teknigas Thermocouple Thorn M Equivalent 727064.