NIBCO 4704 Series CPVC Pipe Fitting, Adapter, 1/2" Slip x NPT Male Adapter for connecting pipes or fittings of different types Slip opening on one end and male NPT threads on the other for connecting to pipes with different ends CPVC for better ductility and resistance to high pressures and temperatures than PVC Smooth interior finish for reduced friction and material buildup Meets specifications ASTM D2846 for quality assurance