... lengthening according to actual needs,can increase oxygen for the deep water,The aerator has light weight,and easy to install, ... of ponds,lakes and parks Characteristics:1 stainless waterproof motor, water cooling, high efficiency;2 use corrosion resistant materials,has ... to install,convenient for moving;4 can be applied to deep water aeration;5 efficient propeller impeller, more efficient. POWER(W)/ ...