Part No: - 0020020015. Genuine Vaillant Part Not a cheap Chinese make. ECOTEC PLUS 824 VUW 246/5-5 R2 2013-2015 – 47-044-40 R2. ECOTEC PLUS 824 VUW 246/5-5 R4 2015-2015 – 47-044-40 R4. ECOTEC PLUS 825 VUW 256/5-5 R4 2015 ONWARDS – 47-044-57.
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