The Liberty Pump 281-3 is an automatic, submersible effluent sump pump that features a wide-angle float with a quick disconnect. This sump/effluent pump has a single phase permanent split capacitor motor at 1/2HP and a 35ft-long power cord. This Liberty effluent sump pump produces a max flow of 20 GPM at 30' and has a shut-off head of 37'. This effluent sump pump operates at 115V, 8.5 Amp and 60 Hz with a max fluid temperature of 140F. The Liberty 281-3 sump/effluent pump has a 1-1/2" discharge and can handle solids up 3/4. This sump/effluent pump covers a wide range of low-head to mid-head pump applications. The Liberty 281-3 sump/effluent pump is ideal for pumping of drainage, effluent and waste water, and other non-corrosive/non-explosive liquids. Vortex style impeller permitting passage of solids up to 3/4" Cast iron pump housing with protective epoxy coating for corrosion resistance Oil-filled motor housing for lifetime lubrication and rapid heat dissipation 1/2 HP shaded pole motor with thermal overload protection Stainless steel screws, bolts and handle to protect against corrosion Mechanical seal (stainless steel spring, nitrile parts, carbon and ceramic faces) to assure maximum protection against pump failure Upper and lower sintered sleeve bearings for extended motor life Automatic operation with piggyback mechanical float switch with "ON" level at 13" and "OFF" level at 7"