Wassermann 4WDP5 5.0 GPM 55 psi
#3 in 4 GPM and upFull review
The cheapest high-flow pump here by a wide margin. Buy it as a budget upgrade if you can live without a published warranty.
Amazon $63.16$63.16
5 GPM55 psi
3.4/5
A variable-speed, high-pressure pump for motorhomes with filtration or long runs. The Seaflo 56A does the same job for less.
- 5 GPMFlow
- 75 psiShut-off
- Variable speedControl
Check price at Amazon$226.10
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Variable speed with soft start ends rapid cycling
- 75 psi or more at shut-off for long plumbing runs and filters
- Primes from 13 ft, the deepest here
Cons
- Maximum current draw is not published, and Remco warns it draws more than most RV pumps
- About $45 per GPM, more than the Seaflo 56A for similar flow
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 | 55AQUAJET-ARV |
|---|---|
| Performance | |
| Rated open flow | 5 GPM |
| Shut-off pressure | 75 psi |
| Price per GPM | $45.22 |
| Self-priming lift | 13 ft |
| Features | |
| Control | Variable speed |
| Diaphragm chambers | 5 |
| Thermal protection | Yes |
| Build | |
| Warranty | 2 years |
Alternatives in this flow
Jabsco Par-Max HD6
#4 in 4 GPM and upFull review
The highest-flow pump here, 6 GPM at 60 psi, for big boats and multi-bath motorhomes that can feed its 18 A draw.
Amazon $266.47$266.47
6 GPM60 psi18 A
Jabsco Par-Max HD5
#6 in 4 GPM and upFull review
A heavy-duty 5 GPM, 60 psi pump for larger boats and motorhomes. Seaflo’s 55 Series gives more flow for half the price.
Amazon $228.83$228.83
5 GPM60 psi13 A
Compare
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