Will fit: VAILLANT ECOTEC PLUS 824 VUW R4 246/5-5 BOILER. Will fit: VAILLANT ECOTEC PLUS 825 VUW R4 256/5-5 BOILER. Will fit: VAILLANT ECOTEC PLUS 831 VUW R4 316/5-5 BOILER. Will fit: VAILLANT ECOTEC PLUS 832 VUW R4 326/5-5 BOILER.
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