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1/2" is an economical and reliable valve designed for isolating and regulating water flow in plumbing and heating systems
Space-Saving Design: Designed to fit into various spaces without compromising on performance
this product offers excellent resistance to corrosion and wear
The McAlpine BOSSCONN110TBL 4"x1
Secure Connection: Replaces the standard olive in compression fittings
Vaillant sensoNET Internet Gateway (VR921) Worcester Greenstar 4000 18kW 1/2" is an economical andThe Vaillant sensoNET internet gateway (VR921, part no. 0020260963) is the older of Vaillant's two current internet gateways. It pairs with the sensoAPP and remains in the range primarily because it's the only Vaillant gateway compatible with ambiSENSE smart radiator valves making it the required specification for any installation using per radiator eBUS zone control. Not sure which Vaillant control you need? Read our complete plain English guide