The Little Giant GP Series grinder pump from Franklin Electric operates across voltages ranging from 208 to 230 volts in one model. The GP-A (automatic) and GP-M (manual) versions’ powerful motor and construction are designed to handle the tough demands of low-pressure sewage applications, using the same reliable cutter system at 414,000 cuts per minute. These units incorporate a nonclogging impeller staged for efficient pumping of sewage slurries with a shut-off head of 130 feet. They are equipped to handle the demands of grinding domestic sewage, whether as a replacement pump or a packaged system. Available in an automatic version for single-phase power sources and a manual version for both single-phase and three-phase power sources, the GP-A and GP-M employ a 2 hp single-phase, 3,450 rpm with capacitor start/run motor with built-in overload protection to prevent over-current and over-temperature damage. 260/824-2900; www.littlegiant.com.