Automatic Sump/Effluent Pump w/ Vertical Float Switch 25' cord, 1/3HP, 115V

Automatic Sump/Effluent Pump w/ Vertical Float Switch 25' cord, 1/3HP, 115V

The 257-2 from Liberty Pumps is a Automatic Sump/Effluent Pump w/ Vertical Float Switch, 1/3HP, 25' cord, 115V. Turn-on level of the not adjustable switch is 7" and turn-off level is 3-1/2". This pump can operate in a smaller 10" diameter sump pit.

The Liberty Pumps 257-2 has 1-1/2" NPT discharge, 1/2" solids-handling, 18' shut-off head, a unique one-piece cast iron housing and thermally protected & permanently lubricated motor. 

For Sump and De-watering Applications only. This Vertical Magnetic Float (VMF) model is not recommended for effluent applications due to their short On/Off cycle. Wide angle float models (Liberty Pumps 251-2 and 253-2) are better suited for effluent applications and are easily adjustable for different On/Off levels.

For added protection, consider the addition of a back-up pump such as Liberty's SJ10 SumpJet, as well as an alarm such 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 connected to a separate electrical circuit.

CAUTION: Do not let the pump run dry.


  • Rugged 1/3 HP motor, oil filled with thermal overload protection;
  • 1/2" solids handling;
  • 1-1/2" discharge;
  • Hermetically sealed motor and switch cavities, and permanently lubricated bearings;
  • Liberty's UNI-BODY casting - a solid, onepiece housing that eliminates the lower motor seal ring found on other pumps;
  • Epoxy powder coat finish;
  • Vortex style impeller for superior solids-handling. Made of high temperature engineering polymer;
  • Quick-disconnect 25' standard power cord allows replacement of cord in seconds without breaking seals to motor;
  • Fasteners - all non-corrosive stainless steel;
  • 416 stainless steel rotor shaft;

Technical Specifications:

  • Horsepower: 1/3 HP;
  • Cord length: 25';
  • Discharge: 1-1/2";
  • Solids Handling: up to 1/2";
  • Shut-off Head: 18';
  • Voltage: 115V;
  • Amps: 5.2;
  • Hertz: 60 Hz;
  • Phase: 1;
  • Maximum fluid temperature: 140°F;
  • Height: 10.5";
  • Width: 9.6";
  • Weight: 23 lbs.;
  • Minimum sump pit diameter: 10";
  • Minimum sump pit depth: 14";


  • 3 years manufacturer's warranty 
Product Specs
Amps: 5.2
Cord Length: 25'
Discharge: 1-1/2"
Height: 10.5"
Hertz: 60 Hz
Horsepower: 1/3 HP
Maximum Fluid Temperature: 140°F
Minimum sump pit depth: 14"
Minimum sump pit diameter: 10"
Phase: 1
Shut-off Head: 18'
Solids Handling: up to 1/2"
Voltage 115V
Weight: 23 lbs.
Width 9.6"

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  • Views: 9391
  • Automatic Sump/Effluent Pump w/ Vertical Float Switch 25' cord, 1/3HP, 115V QR Code
  • Model: 257-2
  • MPN: 257-2
  • Availability: 2
  • $ 226.50


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Tags: Sump Pumps, Effluent Pumps, Pumps, Plumbing Pumps, Plumbing Supply