The N 3202 N-technology wastewater pump from Flygt - a Xylem Brand has self-cleaning abilities and operates with sustained high efficiency in tough applications. It is designed to perform under extreme conditions, such as cutting solids or fibers down to size, and still perform reliably and energy efficiently. The N-impeller is fitted with a cutting Hard-Iron insert ring. Most solid objects entering the pump will pass through the impeller between the impeller vanes. If an object gets caught on the leading edge of one of the vanes, it will slide along the backswept shape toward the perimeter of the inlet. 855-995-4261; www.xylem.com/pumping.