Facts: 
　　　　1.Unique design of mixing chamber for gas and water, self-suction without external gas source- 
　　　　2.Full mixture of water and gas with propelling aeration for high efficiency of oxygen absorption. 
　　　　3.Low energy consumption, large flow and highly stableoperation. 
　　　　4.Adopting wear- proof ceramic shaft to prolong service Life. 
　　　　5.Fully sealed electrical components of motor,safe and reliable as submerged operation. 
　　　　6.All parts submerged in water except for thesuction hose, Low noise .