The Model SP4 Pump mounts directly in the slip tank with the included stainless mounting plates. Agitation ports in the pump housing create mixing action in the slip; plus, this helps relieve pump pressure. 20" or 29" working depths options are available. Pouring accessories include a 1" x 8' pouring hose with a 1" utility nozzle. Driven by a direct drive 1/2 hp motor with an inline on/off switch. Pumping capacity varies from four (4) to seven (7) gpm depending on model and slip viscosity. Recommended for use for small volume casting applications. The normal life expectancy is about 1600 hours before rebuilding is required. This pump is standard in the Model PP30/ PP30T.