This specification designates requirements for the Viega MiniBloc™ for use in combinations installations supplying water to individual plumbing fixtures through dedicated ports and distribution lines. Each port (outlet) is equipped with a built-in 1/4 turn shut-Off valve to provide control for each fixture from a central location. The MiniBloc™ has separate hot and cold water inlets and ports to manage the entire plumbing system and are also available in single temperature flow through models. A variety of standard and Zero Lead fitting options are available for the MiniBloc distribution ports, including PEX Press Polymer, PEX Crimp PolyAlloy and PEX Compression. These distribution connections come complete with the MiniBloc when ordered. However, supply connections and fixture transition fittings are not included with the unit but are available separately.