Vaillant Ecotec Plus 824 825 831 & Ecotec Pro 24/28 Diverter Valve- 0020020015. Part Numbers: 0020020015. Vaillant Ecotec Pro Diverter Valve. Vaillant ecoTEC Pro Series. Vaillant ecoTEC Pro 24 VUW 246/3-3 R2 (2008-2012) – GC No. 47-044-36 R2.
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