Viega’s ManaBloc plumbing manifold system is a high-efficiency homerun parallel water distribution system. With fewer fittings hidden behind the walls, it minimizes potential leak points and allows the system to operate multiple fixtures at once. With a range of ports from 14 to 36, the system incorporates integrated quarter-turn shutoff valves for each fixture, offering centralized control over the entire plumbing system without having to shut off the main water supply. Available with 3/8” or 1/2” connections, the system features a large 1 1/4” internal reservoir to maintain constant temperature and pressure.