Chrome Plated Brass Pipe Fitting, 45 Degree Elbow, 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 for connecting two pipes Made from brass for higher corrosion resistance than steel Relative softness of metal enables tighter seals and greater ease in installation NPT threads for compatibility with a wide range of threads