4" Submersible Borehole Pump SP5A-8 0.75 kW 2950 Rpm, 380-400-415V 3 Phase 50Hz, Materials: Casing 304 Stainless Steel, Impeller 304 Stainless Steel, Shaft Seal: Ceramic vs Tungsten Carbide, Elastomers: NBR, Discharge Connection: Rp11/2" Female Thread