Barnes Submersible Sump Pumps are designed for general purpose sump applications with up to 1/2-inch spherical solids handling capability. These pumps feature cast iron, stainless steel or polypropylene construction with a choice of open-style bronze or polypropylene impellers. The submersible sump pumps offer: horsepower from 1/3 to 1 1/2 hp NEMA motors, heads to 30 feet and flow rates to 45 gpm. Discharge sizes include 1 1/2- and 2-inch NPT connections. Barnes Pumps, Inc.