Taken out from a Vaillant Ecotec Plus 937 Boiler (pre 2012). Used 7 day or 24 hour digital programmer. Designed to control Hot Water/central heating times independently on Vaillant boilers. Please check if this is compatible with your boiler before purchasing. This is a used unit but works perfectly. £50 or near offer (excluding buyer protection and delivery charges) Item sold as seen. No Returns
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