Grundfos 16S10-10, Material #10154510, 1 Horse Power, 1 Phase, 230 Volts, 4" Dia, 3-Wire, 16 gallon per minute. The complete pump DOES NOT include control box. Control box sold separately. Control Box required for 3-wire single phase applications. The complete pump includes pump and motor. These parts are also available seperately, call us directly for pricing information. STAINLESS STEEL CONSTRUCTION Grundfos submersibles feature rugged and durable stainless steel construction for all vital pump components. Impellers, diffusers, shafts, vanes, cable guards, couplings...even the nuts and bolts are stainless steel. Grundfos’ 4-inch pump systems include the stainless steel pump, motor, and control box and are delivered ready to install. Computer-aided design and manufacturing techniques ensure that each pump is built to exacting tolerance and performs to industry-leading standards. Grundfos state-of-the-art production equipment includes extensive use of robotics and advanced quality assurance procedures. You can rely on quality Grundfos’ groundwater products for outstanding pump performance and best value. SUBMERSIBLES 4-INCH and LARGER WELLS The 4-inch submersibles line covers all flow requirements from 1.2 to 95 gpm and heads to 2000 feet. This broad range ensures proper pump selection for all domestic groundwater system applications.