Sump, Sewage Waste Water, Effluent Pumps by Goulds features cast iron casting and impeller, Silicon Carbide seal and stainless steel shaft.EP series, WE series, PE series and WS series pumps are available. All Goulds WS Model Submersible Pumps are manual shutoff but float switches are available as an add-on and are sold separately. Contact Neptune for more information and help determining your needs.