Removed from a Vaillant Eco Tec Plus 937 but suitable for below models too. see list below. Ecotec Plus 612 VU 126/3-5 2005-2005. Ecotec Plus 612 VU 126/3-5 R1 2005-2012. Ecotec Plus 612 VU 126/5-5 2012-2012.
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