Rheem SP11251R Polysulfone Dip Tube with 3/4" Diameter and 54-3/4" Length, Small For best results, use only Rheem replacement parts for repairing your Rheem Water Heater Inlet Fitting: Flare, Tube Material: Polysulfone, Tube Diameter (in.): 3/4, Total Length (in.): 54-3/4, Outlet Configuration: Open Kits which contain this part: 45W368