Liberty Pumps 457

Last updated: October 31, 2026

Liberty Pumps 457
2.4/5#17 of 17 in 1/2 HP and up sump pumps
2.4

For a narrow pit that needs more lift than a 1/3 HP pump, where a light pump with a magnetic float is preferred over cast iron.

  • 1/2 HPMotor
  • 2,640 GPHFlow at 10 ft
  • Vertical floatSwitch
  • 3 yearsWarranty
Check price at Amazon$243.05

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

Pros
  • 1/2 HP flow and lift in a 12.5 lb pump that is easy to handle
  • Magnetic vertical float works in a 10 in pit
  • Long 25 ft cord reaches an outlet away from the pit
  • Three year warranty
Cons
  • Aluminum and plastic build is less rugged than Liberty’s cast iron 287
  • Flow at 10 ft is well below other 1/2 HP pumps
  • Only a curve is published, no flow table

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 number457-2
Pumping
Motor1/2 HP
TypeSubmersible
Flow at 10 ft2,640 GPH
Flow at 0 ft3,180 GPH
Max lift34 ft
Discharge1.5 in
Running current7.3 A
Switch and build
SwitchVertical float
Cast iron housingNo
Alarm or monitoringNo
Wi-FiNo
Cord length25 ft
Weight12.5 lb
Warranty3 years

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