This Saunier Duval filling cock kit serves as an isolation valve component compatible with C-CI, Themaclassic, Themaplus, Ultracom2, Thema, Isofast, Enviroplus, Isotwin, and Xtramax boilers. Typically located beneath heating appliances, the isolation valve enables users to control the flow of gas and water into a central heating system. It also provides the capability to halt the flow in the event of a leak or emergency.
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