1/2 HP submersible sump pump, contractors series with rugged epoxy coated cast-iron motor housing with high efficient, oil filled motor for enhanced heat dissipation. 2-pole float operation switch for reliable operation and long life. 1-1/2" discharge with a nonclogging vortex impeller that will pump up to 1/2" solids. Not intended for pumping unprocessed household sewage or as a sewage ejector pump. Pumps 4320 GPH at a 5' lift. 2 year limited warranty.