VR66 wiring centre, ideal for simple boiler multizone solutions Can provide up to two heating zones and one domestic hot water zone. eBUS connection to accommodate Vaillant intelligent controls Connections for one 3-port or two 2-port valves NTC connection for uniSTOR unvented cylinder Colour coded connections for quick and easy installation Manufacturer Stock Code: 0020135785 EAN Code: 4024074627839 Length: 310 mm Width: 220 mm Height: 80 mm Weight: 0.95 kg Sub-Category: Heating Control Accessories Made to Order: No Brand: Vaillant Manufacturer Part Number: 0020135785 EAN Number: 4024074627839 Category: Spares and Accessories