Flojet Triplex R3526144D 2.9 GPM
#4 in Under 4 GPMFull review
A long-running OEM triplex pump for trailers and campers. It costs more than importer pumps with a longer warranty.
Amazon $103.59$103.59
The Flojet Triplex R3526144D 2.9 GPM is the better RV water pump overall, rated 2.9 to 2.0. The Flojet Triplex R3526144D 2.9 GPM leads on pressure, value and flow. The Flojet Triplex R3526144D 2.9 GPM costs $11.21 less ($103.59 vs $114.80).
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.
Shurflo Aqua King II Junior 2.0
#11 in Under 4 GPMFull review
A small, low-draw pump for a single galley tap on a boat or van. Its 2 GPM at 30 psi is too little for an RV with a shower.
Amazon $114.80$114.80
Which should you buy?
- Choose the Flojet Triplex R3526144D 2.9 GPM for pressure (50 psi shut-off vs 30 psi shut-off), value ($35.72 per GPM ($103.59, 2.9 GPM) vs $57.40 per GPM ($114.80, 2 GPM)) and flow (2.9 GPM rated open flow vs 2 GPM rated open flow).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every under 4 GPM RV water pump; a clear win is highlighted. How we rank explains each one.
| Factor weight | Flojet Triplex R3526144D 2.9 GPM | Shurflo Aqua King II Junior 2.0 |
|---|---|---|
| Overall rating | 2.9/5 | 2.0/5 |
| Value 25% | 44 $35.72 per GPM ($103.59, 2.9 GPM) | 13 $57.40 per GPM ($114.80, 2 GPM) |
| Flow 20% | 22 2.9 GPM rated open flow | 0 2 GPM rated open flow |
| Pressure 15% | 57 50 psi shut-off | 0 30 psi shut-off |
| Efficiency 10% | 50 maximum current draw not published (neutral score used) | 92 0.57 GPM per amp (3.5 A max) |
| Features 15% | 40 internal bypass, runs dry without damage | 20 runs dry without damage |
| Warranty 15% | 33 2-year warranty | 0 warranty not published, scored as none |
Specifications
| Flojet Triplex R3526144D 2.9 GPM | Shurflo Aqua King II Junior 2.0 | |
|---|---|---|
| Performance | ||
| Rated open flow | 2.9 GPM | 2 GPM |
| Shut-off pressure | 50 psi | 30 psi |
| Max current draw | - | 3.5 A |
| Price per GPM | $35.72 | $57.40 |
| Self-priming lift | 9 ft | - |
| Features | ||
| Control | Pressure switch | Pressure switch |
| Diaphragm chambers | 3 | - |
| Internal bypass | Yes | No |
| Runs dry | Yes | Yes |
| Build | ||
| Weight | 3.5 lb | - |
| Warranty | 2 years | - |