This centrifugal pump is ideal for koi pond, filters and low head waterfalls. It is designed for continuous use. It's weatherproof motor can be used outdoors without protection from the weather. Super quiet. 8' power cord included. Not self-priming. Use in flooded suction applications or with check valve on suction line to maintain prime. Has dual voltage motor. Pumps are shipped 115 volts but can easily be field changed to 230 volts. Max 8200 GPH. 2" Inlet, 2" Outlet. 120 GPM at 5' Head, 103 GPM at 10' Head, 84 GPM at 15' Head, 48 GPM at 20' Head. Maximum head: 22'. 3 year manufacturer's warranty.