Lippert Flow Max 3.0 GPM 12V
#6 in Under 4 GPMFull review
A dealer-friendly 3 GPM replacement from a big RV parts maker. Seaflo’s 42 Series gives the same flow and more pressure for less.
Amazon $105.95$105.95
3 GPM50 psi9.5 A
2.7/5
A low-pressure pump for boats and gravity-style systems where gentle 25 psi flow is wanted. Most RVs want a 45 to 55 psi pump instead.
- 3 GPMFlow
- 25 psiShut-off
- 5.2 AMax draw
- Pressure switchControl
Check price at Amazon$121.48
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Low 5.2 A draw for 3 GPM
- Primes up to 10 ft
- 3-year warranty
Cons
- 25 psi shut-off is the weakest pressure here
- Costs about $40 per GPM
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its flow. How we rank explains each one.
Specifications
| Model number | 31395-2512-3A |
|---|---|
| Performance | |
| Rated open flow | 3 GPM |
| Shut-off pressure | 25 psi |
| Max current draw | 5.2 A |
| Price per GPM | $40.49 |
| Self-priming lift | 10 ft |
| Features | |
| Control | Pressure switch |
| Diaphragm chambers | 3 |
| Build | |
| Weight | 3.2 lb |
| Warranty | 3 years |
Alternatives in this flow
Shurflo Revolution 4008 3.0 GPM
#7 in Under 4 GPMFull review
The standard replacement pump for travel trailers and campers, with a 55 psi switch and a bypass for smoother flow. Buy it to replace a worn 4008 like for like.
Amazon $127.05$127.05
3 GPM55 psi7.5 A
Shurflo Revolution 4028 2.3 GPM
#9 in Under 4 GPMFull review
A low-draw 2.3 GPM pump for a small camper or van with one fixture in use at a time. Larger rigs get more water per dollar from a 3 GPM pump.
Amazon $120.10$120.10
2.3 GPM50 psi5 A
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