NIBCO 1" 45-Degree Elbow. This FlowGuard Gold CPVC elbow is ideally suited for hot and cold water pressure distribution systems in residential and commercial applications. It features a male spigotxfemale socket connection and is used to change the direction of flow. CPVC has proven to be an excellent material for hot corrosive liquids, hot and cold water distribution, and similar applications above the temperature range of PVC. CPVC will not rust, pit, scale, or corrode. CPVC fittings are easy to install and are joined by solvent cementing or threading. NIBCO plastic fittings are backed by a 5-year limited warranty.