Vertical immersible sump pump. The pump body is immersed into the liquid and the motor is mounted above the plate, keeping it away from the liquid. The discharge pipe is separated from the column pipe and the lubrication of the bearings is normally obtained by means of the same pumped fluid, or from an external lubricating source in abrasive services. The possibility to customize mounting plate shape and dimensions, discharge flange position and column lenght, allows designers and end-users to match sump or tank plates or flanges. Suction strainer and suction extension on request.