The Liberty Pump LE51M is a manual submersible sewage pump with a 1/2, 115v motor and a 10' quick-disconnect power cord. It features a 2-vane semi open impeller that allows for 2" solids handling. This sewage pump is intended to be used with approved liquid level control or approved motor control with correct rating that matches motor input in full load amperes. Note: It is also strongly recommended not to run the Liberty Pump LE51M manual submersible pump dry.