The line of Godwin Sub-Prime GSP SlimLine electric submersible pumps for dewatering applications features a slim-line design ideal for fitting into caissons or other confined spaces. The GSP20SL model is capable of maximum flow rates to 140 gpm (31.8 M3/hr.) and discharge heads to 65 feet (19.8M). Like the small dewatering and trash handling models in the Sub-Prime line, these submersible dewatering pumps are suited to tough construction, mining and industrial applications. The GSP20SL features rugged construction for long life, specifically a cast iron impeller, diffuser and bottom plate. Other features and benefits include tandem mechanical seals for dry running and a dual voltage single phase motor or dual voltage three-phase motor for convenient changeover.