Additional Details ------------------------------ Product description: Aquatec 5513-1E12-J526 Pump 4.9 gpm 1/2 FPT 115VAC. Aquatec 550 Series Demand Pump 4.9 gpm 1/2 FPT 115V AC w/ Cord Features: Aquatec 550 Series Demand Pump 4.9 gpm 1/2 FPT 115V AC w/ Cord Features: The Aquatec 550 Series Pumps areused to either draw water from a holding tank and pressurize it or boost pressure from a low pressure source. Although designed to operate intermittently many 550 versions can run continuously for several hours at a time. These pumps can be operated either in demand mode (pressure switch controlled) or in delivery mode (controlled by external power switching device). If needed an integral bypass can be used to limit pressure. 5-chamber construction Closed impervious diaphragm Independent symmetrical valves Highest structural integrity Ten point clamping Engineered composite plastics Corrosion resistant metal Pressure switch and transducer options Aquatec 5513-1E12-J526 Demand Pump Benefits: Self-priming Unparalleled performance efficiency Whisper quiet at lower flows Minimal pulsations 7 year design life Runs dry without damage Chemically resistant versions Aquatec 5513-1E12-J526 Demand Pump Technical Information Aquatec 550 Series Demand Pump Data 550 Series Superflow Pumps Aquatec 550 Series Superflow Pumps