Siemens CZV222 2 Port Zone Valve 5 Wire 22mm. This valve is part of the Siemens range and is a central heating motorised valve which you can purchase in many sizes depending on the application it is to be used on. It is extremely versatile, reliable and can be changed with other motorized valves. The product has been approved to IEC 730-2-8 and as part of the product you will receive a one metre cable.
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