Vaillant timeSWITCH 160 Two-Channel Digital Timer - 0020124498 FAST & FREE POST
Vaillant boiler compatibility ecoTEC Plus Combination Boilers, ecoTEC Pro Combination Boilers, ecoTEC Exclusive Combination Boilers, ecoTEC Plus System Boilers (VR66 required) and ecoTEC Plus Open Vent Boilers (VR66 required).