The Apollo ExpansionPEX 1/2 in. Chrome-Plated Brass PEX-A Barb x 1/4 in. Compression Quarter-Turn Angle Stop Valve is simple to install and provides flow control through a quarter-turn ball valve. Most commonly used at point of use fixtures, it allows for repair and maintenance of fixtures without the need to shut down flow control to the entire system. The 1/4 in. compression outlet provides the capability to install 1/4 in. O.D. tubing or 1/4 in. supply lines. It is designed for use on point of use fixtures such as refrigerators, ice makers and water filtration devices. Apollo ExpansionPEX barb fittings are a key component to 1 of the most economical potable water piping systems. Also capable of integration into hydronic heating systems, Apollo ExpansionPEX couplings must be secured into place Apollo ExpansionPEX sleeves or comparable expansion-type sleeve or ring (all sold separately). The Apollo ExpansionPEX system is a comprehensive piping system comprised of lead free brass fittings, poly alloy fittings, manifolds, valves, fasteners, tools and tubing designed for implementation in water delivery systems, simple or complex. Color: Chrome Plated.