ShinMaywa 50CR2.15S Norus 1/5 HP Stainless Steel Pump - 3,300 gph. The 50CR2.15S is designed for continuous, 24/7 operation, making it perfect for water features, circulation and more! This pump features a maximum flow rate of 3,300 gallons per hour, a maximum head height of 19 feet, and it is rated at 328 watts.