1.Low power consumption, time saving and space saving for installation, portable and light weight design. 2.Creating capacity up to 1.0m3/min for excellent water circulation within water surface and bottom. The depth of water inlet is adjustable. 3.New patent rotary sprinkling produces fine water splash to higher and more extensive area, cover up to 5m diameter_ and dissolve pure oxygen efficiently. 4.High efficient dry motor is adopted and equipped with overload protector. 5.Axial-flow design produces large flow capacity. 6.Dual SIC mechanical seals are adopted for high wear-resistance and durability. 7.Motor frame is made of stainless steel_ cast iron parts are painted with epoxy paint and baked in 180 degree to prevent rustiness. 8.No tool kits are required. Installation is easily accomplished within 1 min, and maintenance is simple with low costs. 9.The aerator is designed with multi-functions and can be individually used as a dewatering pump for landscaping. 10.Standard accessories include: 3 pieces coupled floater, rotary sprinkling plate, and submersible pump with 20m cable.