EEE, Inc. will replace any existing high speed floating aerator of the metal intake/volute design with 15 to 25% less hp of the EEE design, and guarantee you the same or better performance than you are now getting. The reason is our large diameter bell shape intake and discharge opening. Our head losses are 10x less than the metal type aerator. According to their published gpm and the EEE tested gpm, EEE is 30 -40% higher. More gpm gives you more oxygen, and better mixing. Pay for your floating aerators with the electric savings.