A.Y. McDonald 24750T3Z High Flow SS Pump Motor & Starter 80 GPM 7.5 HP 230V 3-Wire 3-PhaseA. Y. McDonald offers a full line of four inch submersibles ranging from 1 through 10 horsepower (HP), with flow rates ranging from 35 through 80 gallons per minute (GPM). The 24000 high flow submersibles offer peak capacity performance in 35, 40, 55, 60 and 80 gallons per minute (GPM) models. All T Series submersible pumps are designed to pump within the 80 GPM range. Sizes are available from 3 to 7. 5 horsepower. All models are standard with 2. 0"