Vaillant Ecotec Plus 837 838 937 637 Lüfter (nach Modell 2012) 0020135139
The Vaillant ECOTEC PLUS 837 838 937 637 FAN (AFTER 2012 MODEL) 0020135139 is a high-efficiency storage tank water heater suitable for use with boilers. Ecotec Plus 637 VU 376/5-5 2012-2012 – 41-044-65.