The GST Sub-Prime® line is a selection of portable, electric submersible pumps designed for trash-laden applications. Standard side discharge and semi-vortex cast iron impeller enable these units to handle solids up to 1 in. (25 mm) in diameter. The fully removable volute makes clean-out fast and easy. The GST Sub-Prime® line offers flow rates to 75 gpm (4.75 l/sec) and maximum heads to 48 feet (14.6 m). Units are available in 0.5 hp / 0.4 kW (GST05) model. High-performance and affordability combine to make the GST Sub-Prime® pump ideal for use in general dewatering applications, as well. For automatic starting applications, a piggyback single float switch can be supplied.