Automatic Electric Submersible Clean / Dirty Water Pump - Utility Pump - Sump Pump 400W, 110V/60Hz, 1850gal/hr, 30-foot electrical cord. Copper coil for improved electrical efficiency and long life. Upgraded stainless steel impeller and shaft for extremely long usable product life. Excellent pump for pools, pool covers, ponds, basements / cellars, water features and fountains, irrigating gardens, garages, patios, cesspools or reservoirs, etc. Submersible clean /dirty water pump with back impeller suitable to lift waste liquids even with suspended solids up to 1.29" Thermal overload protection - Automatically shuts off motor in the event of overheating. Float switch automatically turns on/off pump once minimum water level is reached.