Brass Pipe Fitting, Class 250, Tee, 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 all three ends for connecting to male pipes Made from brass for higher corrosion resistance than steel Relative softness of metal enables a tighter seal and ease in installation Meets specifications ANSI B1.20.1 and ANSI B 16.15 for quality assurance