Brass Pipe Fitting, Class 125, 90 Degree Elbow, 1/2" NPT Male x 1/2" NPT Female These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories. Female National Pipe Taper (NPT) threads on one end and male NPT threads on the other for connecting different types of pipe Made from brass for machinability and higher corrosion resistance than steel National Pipe Taper (NPT) thread for compatibility with a range of threads More economical than steel