Mighty-Mate 1/3 HP Submersible Sump Pump with Plastic ImpellerThe model 53 Mighty Mate submersible sump pump is designed for removing water from sumps or effluent from septic tank systems. Features a float operated submersible, 2 pole mechanical switch with a solid, buoyant polypropylene float, stainless steel screws, switch arm, guard and handle, and a 9 foot cord. The vortex impeller is made of glass filled engineered plastic and is capable of passing 1 2" spherical solids. The cast iron housing has a durable,