506158 This 6-CIA 1/3 HP 1-1/2" F Submersible Sump Pump is a powerful tool that you can rely on. It has a shaft seal made of nitrile with carbon and ceramic faces, which provides increased durability. With an off point from 1 in to 4 in. and an on point from 7 in to 10 in., this submersible sump pump delivers maximum performance when it comes to draining liquids. The epoxy coated cast iron housing keeps the unit free from rust and corrosion, while the diaphragm casing ensures long life for the product. This 1/3 hp sump pump has a max liquid temperature of 140 degrees F and a max temp of 140 degrees F. If you need a dependable submersible sump pump, the 6-CIA will not let you down.