The line of Godwin Sub-Prime GSP electric submersible pumps is designed for large dewatering applications requiring high head or high volume. The GSP45 and GSP60 models are capable of maximum flow rates from 250 to 550 gpm (15.8 to 34.7 l/sec.) and maximum discharge heads from 66 to 150 feet (20.1 to 45.7 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 longer 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.