Vaillant VR66/2 control centre, part number 0020135785. This is the wiring centre used with Vaillant heating controls. It is not a room thermostat.

• Brand: Vaillant
• Model: VR 66/2
• Part number: 0020135785
• Brand new

Check it matches the control set on the boiler before fitting. The earlier description calling this a thermostat was wrong and has been removed.