... trim impeller adjusment. 2.Specially designed lifting handle 3.Motor protecting 4.New,efficient grinder system WQAS(D) heavy ... :Class FProtection:IP68Popular style submersible sewage grinder pump,the pump we deal with electrophoresis and spray painting,double anti-corrosion ... 220V,230V.380V,415V,Frequency:50HZ.60HZThese series pump always connect with the control panel.that current protect,water level ...