The advanced technique of the pump can make the water flow more effective with quiet operation. The unique rectifier and high effective impeller can offer higher water flow and energy usage rate. The shell of pump is made of one-piece thermal plastic. With superior pressure up to 7kg/cm2. The pump equipped with super large hair filtration mesh and easy-checked cover. The optimal performance is for hundred time start-up frequency use everyday in public spa center. There are 5 degrees of power range from 0.75kw to 3kw.