For a typical basement where a long lasting cast iron pump with a reliable float matters more than raw flow.
Amazon $216.295 Liberty Pumps sump pumps ranked. Each one is scored and ranked against every brand in its size, so "#3 mid-size" means third of all mid-size sump pumps here, not third among Liberty Pumps's own.
Liberty Pumps makes 5 current sump pumps: 3 up to 1/3 HP and 2 1/2 HP and up. Prices run from $165 for the Liberty Pumps S37 to $323.25 for the Liberty Pumps 287. Its best-rated model in each size: the Liberty Pumps 257 (#8 of 16 up to 1/3 HP, rated 3.1) and the Liberty Pumps 287 (#13 of 17 1/2 HP and up, rated 2.9).
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Liberty Pumps sump pumps 5
- Liberty Pumps 257#8 up to 1/3 HPFull review
For a typical basement where a long lasting cast iron pump with a reliable float matters more than raw flow.
Amazon $216.29$216.291/3 HP2,220 GPHVertical float - Liberty Pumps S37#12 up to 1/3 HPFull review
For a newer house or a gritty pit where a low cost Liberty pump that resists debris jams is enough.
Amazon $165$1651/3 HP2,100 GPHVertical float - Liberty Pumps 287#13 1/2 HP and upFull review
For a deep basement or a pit that fills fast, where a strong cast iron pump that fits a narrow pit is worth paying for.
Amazon $323.25$323.251/2 HP3,300 GPHVertical float - Liberty Pumps 237#15 up to 1/3 HPFull review
For a narrow or shallow pit with modest inflow, where a light, compact Liberty pump with a magnetic float is enough.
Amazon $188.95$188.951/3 HP1,800 GPHVertical float - Liberty Pumps 457#17 1/2 HP and upFull review
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.
Amazon $243.05$243.051/2 HP2,640 GPHVertical float