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
The Wassermann 4WDP5 5.0 GPM 55 psi is the better RV water pump overall, rated 3.6 to 3.4. The Wassermann 4WDP5 5.0 GPM 55 psi leads on value. The Remco Aquajet RV Variable Speed wins on pressure and features. The Wassermann 4WDP5 5.0 GPM 55 psi costs $162.94 less ($63.16 vs $226.10).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Remco Aquajet RV Variable Speed
#5 in 4 GPM and upFull review
A variable-speed, high-pressure pump for motorhomes with filtration or long runs. The Seaflo 56A does the same job for less.
Amazon $226.10$226.10
Which should you buy?
- Choose the Wassermann 4WDP5 5.0 GPM 55 psi for value ($12.63 per GPM ($63.16, 5 GPM) vs $45.22 per GPM ($226.10, 5 GPM)).
- Choose the Remco Aquajet RV Variable Speed for pressure (75 psi shut-off vs 55 psi shut-off) and features (variable speed, thermal protection vs runs dry without damage, strainer included).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 4 GPM and up RV water pump; a clear win is highlighted. How we rank explains each one.
| Factor weight | Wassermann 4WDP5 5.0 GPM 55 psi | Remco Aquajet RV Variable Speed |
|---|---|---|
| Overall rating | 3.6/5 | 3.4/5 |
| Value 25% | 100 $12.63 per GPM ($63.16, 5 GPM) | 28 $45.22 per GPM ($226.10, 5 GPM) |
| Flow 20% | 75 5 GPM rated open flow | 75 5 GPM rated open flow |
| Pressure 15% | 71 55 psi shut-off | 100 75 psi shut-off |
| Efficiency 10% | 50 maximum current draw not published (neutral score used) | 50 maximum current draw not published (neutral score used) |
| Features 15% | 30 runs dry without damage, strainer included | 50 variable speed, thermal protection |
| Warranty 15% | 0 warranty not published, scored as none | 33 2-year warranty |
Specifications
| Wassermann 4WDP5 5.0 GPM 55 psi | Remco Aquajet RV Variable Speed | |
|---|---|---|
| Performance | ||
| Rated open flow | 5 GPM | 5 GPM |
| Shut-off pressure | 55 psi | 75 psi |
| Price per GPM | $12.63 | $45.22 |
| Self-priming lift | - | 13 ft |
| Features | ||
| Control | Pressure switch | Variable speed |
| Diaphragm chambers | - | 5 |
| Runs dry | Yes | - |
| Thermal protection | - | Yes |
| Strainer included | Yes | - |
| Build | ||
| Warranty | - | 2 years |