High-efficiency split capacitor motor: our expertly crafted residential sump pumps provide increased reliability, higher performance, longer motor life, great starting torque and low amp. High-capacity clog-free operation: this 10 ft. Corded submersible pump can discharge up to 4090 gallons per hour and lift water up to 31 ft. Of vertical height large 1-1/2 in. NPT discharge, which can pass 1/2 in. Spherical solids. Robust design: this 3450-rpm cast iron sump pump features a high efficiency 1/2 hp motor, a rigid stainless-steel shaft and hardware, a heavy-duty industrial carbon/ceramic seal, oil-lubricated ball bearings and a piggyback mechanical float switch. Reliable thermal protection: protect your sump pump system with built-in automatic thermal overload protection to prevent dangerous overheating and potential overload or phase failure. Professional-grade products: since the brands' founding in 1995, LEO has delivered innovative, cost-effective solutions supported by best-in-class service and 36-month limited warranty.