The line of Godwin Sub-Prime GSP electric submersible pumps is designed for large dewatering applications. The GSP25 and GSP35 models are capable of maximum flow rates from 254 to 301 gpm (16.0 to 19.6 l/sec.) and discharge heads to 61 feet (18.3 meters). Like the small dewatering and trash handling models in the Sub-Prime line, these large dewatering submersible pumps are suited to tough construction, mining and industrial applications. They feature a slim-line design ideal for fitting into confined spaces and rugged construction for long life, specifically a cast chromium steel impeller and heavy duty rubber coated adjustable wear parts. Other features and benefits include tandem mechanical seals for dry running and extra protection against leakage, and a dual voltage junction chamber for convenient changeover in the field.