Kasco Aerators, also called High Oxygen Transfer Aerators, are intended for larger commercial applications like fish farms and large ponds. They have an oxygen transfer rate of 3.0 SAE or greater. The Kasco Aerators are self-contained units that float on the surface with a single power cord returning to shore. They include 2 mooring lines that anchor the Aerator, which provides for easy mobility and installation for the individual operator. This Kasco Aerator is excellent for continuous duty when low oxygen levels and minimum operating depths are as low as 20".