NIBCO 1/2" 45-Degree Street Elbow. It is made of FlowGuard Gold CPVC and is ideally suited for hot and cold water pressure distribution systems in residential and commercial applications. The CPVC-CTS 45-Degree elbow features a male spigotxfemale socket connection and is used to change the direction of flow. It is corrosion resistant and Lead-Free. It is easy to install and is joined by solvent cementing or threading. NIBCO plastic fittings are backed by a 5-year limited warranty.