NIBCO 1/2" Male Pipe Thread Adapter. 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 male adapter with washer features a male socketxmale NPT threaded connection and provides a means for adapting a solvent weld connection to a threaded connection. It is underground rated and has a maximum working pressure of 400 psi. Easy to install, it is joined by solvent cementing or threading. NIBCO plastic fittings are backed by a 5-year limited warranty.