The Apollo Expansion PEX 12-Port PEX Manifold with 1/2 in. Poly Alloy Valves is simple to install. Think of it as the circuit breaker for your water delivery system. The installation of an Apollo manifold provides a single point flow control over each outlet. Apollo manifolds are designed for implementation within "home-run" type expansion PEX-A piping systems eliminating the need for additional fittings or connections between the water source and the point of use fixture. Apollo manifolds are a key component of the most economical potable water piping systems. Apollo piping runs must be secured into place using Apollo pipe or comparable cold expansion tubing using Apollo sleeves or comparable expansion-type sleeve or ring (all sold separately). The Apollo system is a comprehensive cold expansion piping system comprised of brass fittings, poly alloy fittings, manifolds, valves, fasteners, tools and tubing designed for implementation in water delivery systems, simple or complex. A cold-expansion tool (sold separately) is required for installation. Material: Plastic.