Lanchez Q450B82V Stainless Steel and Cast Iron Submersible Sump Pump Sewage Pump With Float Switch for Dirty Water 1/2 hp, maximum flow rate is 3696 gallons per hour; Automatic on/off action with mechanical float switch for convenient operation NPT 1-1/2 inch discharge; Ability to lift water from 23-feet maximum submersible depth to 29.7 feet high and pass up to 1 inch grains Place on a hard, level surface in a suitable, gas-tight basin that is at least 11 inch diameter and 18 inch deep; 25 feet power cable Lower noise and emergy-efficient, oil-filled electric motor with thermal overload protection to prevent overheating Rugged and corrosion-resistant plastic construction for durability; UL certificated with one-year limited warranty;