Brass Pipe Fitting, Class 125, Floor Flange, 1/2" 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 for connecting to a male threaded pipe Bolt holes to connect to flat surfaces Made from brass for higher corrosion resistance than steel Meets specifications ANSI B1.20.1 and ANSI B 16.5 for quality assurance