The Ocean Runner pumps are powerful universal pumps to be used as circulation or current pumps, both in saltwater and freshwater aquaria. The Ocean Runners are supplied with a rugged pump housing, an energy saving motor, a polished ceramic shaft and ceramic bearings. All these qualities ensure a quiet and maintenance free performance for many years. Specifications: - Flow Rate: 630 GPH - Power Consumption: 38 Watts - Max. head 7.7 ft.