Enhanced Little Giant GP Series grinder pump models now operate across voltages ranging from 208 V to 230 V in one model. The GP‐A (Automatic) and GP‐M (Manual) versions’ powerful motor and construction handle the tough demands of low pressure sewage applications, utilizing the proven cutter system at 414,000 cuts per minute. The units incorporate a non-clogging impeller staged for efficient pumping of sewage slurries with a shut-off head of 130 feet. To grind 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 3-phase power sources, the GP-A and GP-M employ a powerful 2 hp single-phase, 3450 rpm with capacitor start/run motor with built-in overload protection. Other features include corrosion-resistant brass impellers that minimize downtime and maintenance, and an epoxy-coated cast iron finish for durability.