Sta-Rite Pool pump type 5P2R/S5P2R Pumping Equipment UK The Sta-Rite S5P2R pumps are precision moulded of reinforced fiberglass. This lightweight, exceptionally strong, thermoplastic is designed for much higher pressure operation. The S5P2R series are suitable for salt water applications up to 0.4% (4 grams per liter) salt concentration. The S5P2R has a special motor shaft [...]