Master Plumber, Mark II, 3/10 HP, Thermoplastic, Submersible Automatic Sump Pump, 8' Power Cord, Piggy Back Tethered Non-Mercury Float Switch, 1-1/4" Discharge Coupling, Durable & Completely Corrosion Free, Dependable Motor & Float Switch For Automatic Or Manual Operation, Maximum Pumping Capacity To 1,860 Gallons Per Hour, Designed For A Minimum 11" Diameter Sump Basin, 2 Year Warranty.