This specification designates requirements for the Viega ManaBloc manifold system which supplies water to individual plumbing fixtures through dedicated ports and distribution lines. Each port (outlet) is equipped with a built-in turn shut-off valve to provide control for each fixture from a central location. The ManaBloc has separate hot and cold water inlets and ports to manage the entire plumbing system. A variety of standard and Zero Lead* fitting options are available for the ManaBloc distribution ports, including PureFlow Press Polymer and PureFlow Crimp PolyAlloy. These distribution connections come complete with the ManaBloc when ordered. However, supply connections and fixture transition fittings are not included with the unit but are available separately.