Brass Pipe Fitting, Class 125, Square Head Solid Plug, 3/4" NPT male 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. Male National Pipe Taper (NPT) threads for a tight seal Made from brass for machinability NPT threads for compatibility with a variety of thread types Meets standards ANSI/ASME B16.15, ASME B1.20.1, ASTM B584, and ALLOY C83600 for quality assurance