Liberty Pumps 257

Last updated: October 31, 2026

Liberty Pumps 257
3.1/5#8 of 16 in up to 1/3 HP sump pumps
3.1

For a typical basement where a long lasting cast iron pump with a reliable float matters more than raw flow.

  • 1/3 HPMotor
  • 2,220 GPHFlow at 10 ft
  • Vertical floatSwitch
  • 3 yearsWarranty
Check price at Amazon$216.29

Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • One piece cast iron body runs cool and has no lower housing seal to leak
  • Magnetic vertical float has no mechanical switch arm to stick and fits a small pit
  • Quick connect cord can be replaced without opening the motor
  • Three year warranty from a US maker sold through plumbing suppliers
Cons
  • Flow falls off fast above 15 ft, so it suits ordinary basement lifts only
  • Costs more per gallon pumped than plastic pumps of the same size
  • Liberty publishes only a curve, not a table of flow at each height

The Liberty 200 Series family

Every Liberty 200 Series model we rank, smallest first. Ratings compare each against its own size.

ModelMotorRatingPrice
Liberty Pumps 257 (this one)1/3 HP3.1/5$216.29
Liberty Pumps 2871/2 HP2.9/5$323.25

How it scores

The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.

Specifications

Model number257
Pumping
Motor1/3 HP
TypeSubmersible
Flow at 10 ft2,220 GPH
Max lift22 ft
Discharge1.5 in
Running current5.2 A
Switch and build
SwitchVertical float
Cast iron housingYes
Alarm or monitoringNo
Wi-FiNo
Cord length10 ft
Weight21 lb
Warranty3 years

Alternatives in this size

Compare

Compare the Liberty Pumps 257 with any other sump pump →

More from Liberty Pumps: every Liberty Pumps product ranked.