Why it matters
Liberty assembles its 257 cast iron primary and 442-10A backup on 1-1/2 in PVC with a rubber coupler, and fits a check valve to each pump, so the whole system drops in ready to connect.
The 257 is Liberty's popular 1/3 HP primary; the 442 backup runs from a 12 V battery when the power goes out.
Who it's for, and who should skip it
Good fit if
- Owners who want Liberty throughout
- Contractor installs
- Replacing an old system
Look elsewhere if
- Tight budgets
- Pits too small for two pumps
Pros and cons
Pros
- Fully assembled
- Check valves included
- Liberty primary
Cons
- High price
- Battery extra
- Fewer specs on the listing
Limitations to weigh
- Battery backups need a separate 12 V deep-cycle battery unless one is included; check the battery's age every year.
- Maximum head is where flow drops to zero; at your lift the pump moves less than its maximum flow. Size it with the sizing calculator.
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 | Polyvinyl chloride | Retailer |
|---|---|---|
| Product weight | 42 lb | Retailer |
| Voltage | 115 V | Retailer |
| Model number | PC257-442-10A-EYE | Retailer |
Alternatives worth comparing
More backup sump pumps we cover
- Pumps-A-Lot WP25 Water-Powered Pump
- Liberty Pumps SumpJet SJ10 Water-Powered Backup
- Superior Pump 91012 12 Volt Utility Pump
- Basement Watchdog BWE Emergency Battery Backup
All backup sump pumps, compared in one table · Every Liberty Pumps product we cover
Final verdict
A premium choice if you want Liberty's primary and backup together.
Where to buy
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