All orders accepted by 3pm Monday to Thursday are dispatched the same day and are normally delivered within 24 hours.

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Potterton 402905 Thermocouple

£13.19 ex. VAT

 A thermocouple is a mechanism that is made of two different metals that produce a slight electrical charge when heated on one side. This charge turns on an electromagnet which opens a valve and allows the gas or water to flow through.

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