Liberty Pumps S37
#12 in 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$165
The Liberty Pumps S37 is the better sump pump overall, rated 3.0 to 2.5. The Liberty Pumps S37 leads on value and flow. The Liberty Pumps S37 costs $23.95 less ($165 vs $188.95).
Liberty Pumps 237
#15 in 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$188.95
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.
Which should you buy?
- Choose the Liberty Pumps S37 for value ($78.57 per 1,000 GPH at 10 ft ($165, 2,100 GPH) vs $104.97 per 1,000 GPH at 10 ft ($188.95, 1,800 GPH)) and flow (2,100 GPH at 10 ft vs 1,800 GPH at 10 ft).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 1/3 HP sump pump; a clear win is highlighted. How we rank explains each one.
| Factor weight | Liberty Pumps S37 | Liberty Pumps 237 |
|---|---|---|
| Overall rating | 3.0/5 | 2.5/5 |
| Value 30% | 43 $78.57 per 1,000 GPH at 10 ft ($165, 2,100 GPH) | 18 $104.97 per 1,000 GPH at 10 ft ($188.95, 1,800 GPH) |
| Flow 30% | 40 2,100 GPH at 10 ft | 20 1,800 GPH at 10 ft |
| Build 20% | 33 switch fits a narrow pit | 33 switch fits a narrow pit |
| Warranty 20% | 50 3-year warranty | 50 3-year warranty |
Specifications
| Liberty Pumps S37 | Liberty Pumps 237 | |
|---|---|---|
| Pumping | ||
| Motor | 1/3 HP | 1/3 HP |
| Type | Submersible | Submersible |
| Flow at 10 ft | 2,100 GPH | 1,800 GPH |
| Flow at 0 ft | - | 2,640 GPH |
| Max lift | 25 ft | 21 ft |
| Discharge | 1.5 in | 1.5 in |
| Running current | 6.5 A | 5.2 A |
| Switch and build | ||
| Switch | Vertical float | Vertical float |
| Cast iron housing | - | No |
| Alarm or monitoring | No | No |
| Wi-Fi | No | No |
| Cord length | 10 ft | 10 ft |
| Weight | 14 lb | 11 lb |
| Warranty | 3 years | 3 years |