SEAFLO Marine Water Pump
Score: 85/100
Jabsco Par-Max HD5
Score: 88/100Rankings
The Jabsco Par-Max HD5 is a heavy-duty 12V DC water pressure pump designed for marine and RV freshwater systems, delivering up to 5 GPM at 60 PSI. It features a robust construction with a cast aluminum lower housing, powder-coated motor shell, and co-molded TPV diaphragm to ensure longevity under high-pressure conditions. Best suited for marine vessels or RVs with 3+ outlets needing high flow/pressure, such as multiple showers and galleys.
The Seaflo 55-Series 5.5 GPM marine water pump is a heavy-duty, self-priming diaphragm pump designed for high-volume applications in marine, RV, and off-grid settings. It delivers 60 PSI of pressure with a flow rate of 5.5 GPM, supporting up to five simultaneous outlets without requiring an accumulator tank, though one is available for reduced cycling. While it offers excellent performance and durability, the high amperage draw requires careful electrical planning.
| Attribute | | |
|---|---|---|
5.5 GPMbest | 5 GPM | |
60 PSIbest | 60 PSIbest | |
6 ft | 8 ftbest | |
12 Vbest | 12 Vbest | |
18.9 Abest | — | |
100 %best | — | |
140 °Fbest | 140 °Fbest | |
| ↓ lower better | 14 lbs | 8.4 lbsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance & Power(1) | ||
Flow Rate (GPM) | 5.5 GPM | 5 GPM |
Features & Protection(2) | ||
IP Rating | N/A | IPX6 |
Warranty Length (months) | 48 months | null months |
Build & Durability(3) | ||
Motor Type | Diaphragm | Brushed Permanent Magnet TENV |
Weight (lbs) | 14.0 lbs | 8.4 lbs |
Diaphragm Material | Santoprene | TPV |
Installation & Compatibility(1) | ||
Self-Priming Lift (ft) | 6 ft | 8 ft |
Products in the top-left offer the best value (high score, low price).
Professional reviewers and editors highlight the pump's heavy-duty build quality and consistent performance, noting its ability to support multiple fixtures without pressure loss. Experts praise its quiet operation and built-in thermal protection, positioning it as an economical yet reliable workhorse for boats and RVs. The inclusion of an accumulator tank is recommended for surge prevention and reduced cycling, enhancing overall system stability.
Everyday users and consumers generally praise the pump for its reliability in marine and RV setups, with high ratings on retailer sites indicating strong satisfaction. Common praise focuses on the strong pressure output and the ability to support multiple outlets simultaneously. Recurring complaints are minimal but include occasional priming delays when the system is air-locked, requiring patience during startup.
Retail descriptions from marine specialists emphasize the pump's exceptional performance for vessels with multiple outlets. They highlight the HD upgrades for providing long life even at high pressures and position it as a premium option over standard Par-Max models for demanding applications requiring up to 6 GPM/60 PSI in series.
Search results lack detailed expert reviews or user feedback, limiting analysis to product claims and listings. Listings show star ratings placeholders but no comments on praise or complaints regarding reliability, noise, or priming.
