Why it matters
The 331 is Liberty's 1/2 HP portable transfer pump, with an aluminum body on 115 V, made in America.
It's a pricier, heavier option than the 1/10 HP hobby transfer pumps, aimed at people who move water often. Liberty gives it a two-year warranty.
Who it's for, and who should skip it
Good fit if
- Frequent water transfer
- Owners who want a US-made pump
- Liberty owners
Look elsewhere if
- Occasional aquarium changes
- Sewage
- Tight budgets
Pros and cons
Pros
- Made in America
- 1/2 HP
- Two-year warranty
Cons
- Price
- Few published specs here
- Heavier than hobby pumps
Limitations to weigh
- Transfer pumps sit outside the water and must be primed before each use.
- Don't let it run dry; most pumps wear out quickly without water to cool them.
Specifications
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Material | Aluminum | Retailer |
|---|---|---|
| Dimensions (seller) | 9"L x 8"W x 13"H | Retailer |
| Max head / lift (maker) | 15 ft | Retailer |
| Voltage | 115 V | Retailer |
| Horsepower | 1/2 HP | Retailer |
| Model number | 331 | Retailer |
| Warranty | 2 years from purchase | Retailer |
Alternatives worth comparing
More utility & transfer pumps we cover
- MEDAS 1 HP Submersible Pump
- PHLEX PRO 1/2 HP Utility Pump
- PANRANO 1.5 HP Utility Pump
- PHLEX PRO 1 HP Utility Pump
All utility & transfer pumps, compared in one table · Every Liberty Pumps product we cover
Final verdict
A durable choice if you transfer water often.
Where to buy
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Questions buyers ask
Where is it made?
In America, per the listing.
Is it submersible?
No, it's a portable transfer pump that sits outside the water.