The submersible 3SD non-clog dual seal with seal sensor probe sewage pump from Goulds Water Technology, a Xylem brand, combines dual hard-face mechanical seals with a 300 Series stainless steel keyed shaft motor. It has a cast iron, two-vane, semiopen, non-clog impeller with pumpout vanes for mechanical seal protection. It is balanced for smooth operation and capable of running dry without damaging the inner components, according to the maker. It comes in single- and three-phase options with horsepower range of 1.5 to 5, supporting several hydraulic requirements. It is UL and CSA certified. 866/325-4210; www.goulds.com.