Sta-Rite MSE Deep Well Jet Pump Multi-Stage 1 HPVertical Multi Stage Deep Well Jet, Cast Iron, 1 HP MS Design Series deep well jet pumps feature over the well "bolt on" capability with a special casing adapter for 2" and 3" single pipe installations, and adapter flanges for adapting all double pipe installations. KEY FEATURES Quality Construction Precision machined, close grained cast iron pump body and base are specially treated to resist corrosion. Automatic Pressure Regulator Faster acting and