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lightweight design allows easy installation in tight spaces
Space-Saving Design: Designed to fit into various spaces without compromising on performance
Secure Connection: Replaces the standard olive in compression fittings
1/2" is an economical and reliable valve designed for isolating and regulating water flow in plumbing and heating systems
particularly in unvented areas
Vaillant sensoNET Internet Gateway (VR921) Worcester Greenstar 4000 18kW lightweight design allows easy installationThe 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