4-inch shield submersible motor, is your ideal choice beause of excellent performance, reliable technique and multi-aspect service. Shuilishi pumps has lastest developed the 4-inch shield submersible motor which has a breakthrough in technology. It is a rewinding submersible motor inculding the charateristics of the oil type pump and the water type pump which can be easy maintenance, long life span, good performance when under water and high pressure resistance.