The Liberty Pump FL104M-2 is a 3 phase manual submersible effluent sump pump made to work with STEP systems, mound systems, liquid waste transfer, and higher head de-watering applications. The 1HP motor is enclosed inside of a heavy-duty cast iron construction and there is also a fully adjustable pumping range. The 3 phase pumps needs a control panel for automatic operation. It can handle solids up 3/4' and has a stainless steel rotor shaft for increased endurance.