Everflow Supplies NPBR1245 4-1/2" Long Brass Nipple Pipe Fitting with 1/2" Nominal Diameter and NPT Ends Overflow part number NPBR1245 Brass 4-1/2" long nipple 1/2 inch Nominal pipe diameter with male threaded NPT ends Conforms to ASTM B687 ANSI ASME B1.20.1 Meets or exceeds all applicable ANSI standards