Vaillant Ecotec PCB 0010028086, designed for various Vaillant boilers. Ecotec Plus 612. Ecotec Plus 612 VU 126/5-5 2012-2012 - 41-044-60. Ecotec Plus 612 VU 126/5-5 A R4 2015 Onwards - 41-044-78. Ecotec Plus 612 VU 126/5-5 R 6 2017 Onwards - 41-694-20.
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