Liberty Pumps 287 is a 1/2HP Automatic Submersible Sump with with magnetically operated upended float VMF switch and 10ft power cord. Turn-on level of the not adaptable switch is '' and turn-off level is 4 ''. This pump can operate in a smaller 10 '' diameter sump pit.The Liberty Pumps 287 has 1-1/2 '' NPT discharge, 3/4 '' solids-handling, 37 ' shut-off head, a unequaled one-piece cast iron housing and thermally secure permanently lubricated motor.Liberty Pumps 287 is a Automatic Submersible Sump Pump with with magnetically operated upended float VMF switch and 10ft power cord. Turn-on level of the not adaptable switch is '' and turn-off level is 4 ''. This pump can in a smaller 10 '' diameter sump pit.The Liberty Pumps 287 has 1-1/2 '' NPT discharge, 3/4 '' solids-handling, 37 ' shut-off head, a unequaled one-piece cast iron housing and thermally secure permanently lubricated motor.For Sump and De-watering Applications lonesome. This upended attractive force Float -LRB- VMF -RRB- model is not for outflowing applications callable to their short-term On/Off cycle. Wide angle float models -LRB- Liberty Pumps 281 and 283 -RRB- are better for outflowing applications and are easily adaptable for various On/Off levels.For added protection, consider the addition of a back-up pump such as as Liberty 's SJ10 SumpJet, as well as an alarm such as as Liberty 's ALM-2 in applications where loss of pump function could result in property damage. If an alarm is used, it must be to a disjunct physical phenomenon circuit.CAUTION Do not let the pump run arid.