Viega PureFlow Manabloc helps you control the water supply to every point in your home separately, saving water and energy, all from a single device. If a repair is needed, you can shut off the water to just the right point without shutting down the entire house. Manabloc has 14 ports - 8 for cold water and 6 for hot water. By controlling each point individually, you can significantly reduce water consumption and consequently the energy used to heat it. Made of lead-free polymer alloy - it is not only environmentally friendly but also safe for your health. Works with 1/2-inch diameter PEX pipes, which are widely used in modern water supply systems. The system is designed to make installation as easy as possible.