Shurflo 4048 High Flow 4.0 GPM
#11 in 4 GPM and upFull review
Shurflo’s high-flow RV pump for rigs that run more than one fixture. Pumps with the same 4 GPM and higher pressure cost less.
Amazon $248.99$248.99
The Shurflo 4048 High Flow 4.0 GPM rates 2.8 among 4 GPM and up RV water pumps; the Shurflo Revolution 4008 3.0 GPM rates 2.7 among under 4 GPM ones. The Shurflo Revolution 4008 3.0 GPM costs $121.94 less ($127.05 vs $248.99).
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 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
Scores side by side
These two sit in different flow classes (4 GPM and up and under 4 GPM), and each is scored against the reference points for its own class, so a rating says how well each does among its own flow peers. How we rank explains each factor.
| Factor weight | Shurflo 4048 High Flow 4.0 GPM | Shurflo Revolution 4008 3.0 GPM |
|---|---|---|
| Overall rating | 2.8/5 | 2.7/5 |
| Value 25% | 8 $62.25 per GPM ($248.99, 4 GPM) | 33 $42.35 per GPM ($127.05, 3 GPM) |
| Flow 20% | 50 4 GPM rated open flow | 25 3 GPM rated open flow |
| Pressure 15% | 71 55 psi shut-off | 71 55 psi shut-off |
| Efficiency 10% | 43 0.40 GPM per amp (10 A max) | 43 0.40 GPM per amp (7.5 A max) |
| Features 15% | 65 internal bypass, runs dry without damage, thermal protection, strainer included | 40 internal bypass, runs dry without damage |
| Warranty 15% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Shurflo 4048 High Flow 4.0 GPM | Shurflo Revolution 4008 3.0 GPM | |
|---|---|---|
| Performance | ||
| Rated open flow | 4 GPM | 3 GPM |
| Shut-off pressure | 55 psi | 55 psi |
| Max current draw | 10 A | 7.5 A |
| Price per GPM | $62.25 | $42.35 |
| Self-priming lift | 6 ft | - |
| Features | ||
| Control | Pressure switch | Pressure switch |
| Diaphragm chambers | 4 | - |
| Internal bypass | Yes | Yes |
| Runs dry | Yes | Yes |
| Thermal protection | Yes | - |
| Strainer included | Yes | - |