The Sequence® Power 4000 Series is a high-performance external pump that has an expansive design that can achieve more than 11000gph at high head pressures, giving it the broadest performance range in the Sequence Power series. This pond pump has 2" inlet and discharge ports with an inner diameter connection of FNPT, and outer diameter buttress threads for union adaptors. Field installations become less burdened, eliminating reducer-fitting and adapter-assembly costs and reducing friction losses in pump systems.Not self-priming, requires strainer basket / priming pot 5 year limited warranty Model 11200PWR81 13200PWR81 Inlet 2" 2" Discharge 2" 2" Max Flow 11160gph 13200gph Max Head 80.8' 81.7' Max Wattage 2162 Watts 2595 Watts Max Amperage 9.6 Amps 11.5 Amps Voltage 230V Motor HP 3 HP Motor Enclosure TEFC Impeller 6 7 Manual Specs