Everflow Supplies NPGL1560 6" Long Galvanized Steel Nipple Pipe Fitting with 1-1/2" Nominal Size Diameter Overflow part number NPGL1560 Galvanized 6 inch long Steel nipple 1-1/2" Nominal pipe diameter with male threaded ends Schedule 40 pipe wall thickness Meets or exceeds all applicable ASTM and ANSI standards