VAILLANT ECOTEC PLUS 612 615 618 824 BOILER. Will fit: VAILLANT ECOTEC PLUS 612 BOILER. VAILLANT ECOTEC PLUS 615 BOILER. VAILLANT ECOTEC PLUS 618 BOILER. VAILLANT ECOTEC PLUS 824 BOILER. Products will not be covered if misused or not serviced as per maintenance instructions.
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