Part Number: 0020140559. 1 x Vaillant Connection Composite. This part fits the following Vaillant boilers Ecotec Exclusive 835 VUW 356/5-7 47-044-66. Ecotec Exclusive 843 VUW 436/5-7 47-044-67. Ecotec Plus 824 VUW 246/5-5 R2 2013-2015 47-044-40 R2.
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