Liberty Pump 237 is 1/3HP Automatic Submersible Sump with with magnetically operated passant float VMF switch and 10ft power cord. It can in a smaller 10 '' diameter sump pit. This Energy Saving Liberty Pump colorful shod powder glazed aluminum motor housing that provides 225 more temperature change capacity than cast iron housings. timesaving motor design electric usage by up to 40. The Liberty Pump 237 1-1/2 '' NPT discharge, 3/8 '' solids-handling, 21 ' max. . . and thermally permanently lubricated motor.