Jabsco Par-Max HD5
Score: 88/100
Seaflo 33 Series
Score: 82/100Rankings
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 33 Series (115V) is a pre-assembled AC diaphragm pump designed for marine, RV, and residential applications, delivering a consistent 3.3 GPM flow at 45 PSI. It features an integrated accumulator tank to minimize cycling and a low 1.0A current draw for efficient home use. It is ideal for users needing compact, 115V AC water pressure in small residential systems or cabins.
| Attribute | | |
|---|---|---|
5 GPMbest | 3.3 GPM | |
60 PSIbest | 45 PSI | |
8 ftbest | 6 ft | |
12 V | 115 Vbest | |
— | 1 Abest | |
140 °Fbest | 140 °Fbest | |
| ↓ lower better | 8.4 lbs | 4.19 lbsbest |
— | 0.5 inbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance & Power(3) | ||
Flow Rate (GPM) | 5 GPM | 3.3 GPM |
Max Pressure (PSI) | 60 PSI | 45 PSI |
Voltage (V) | 12 V | 115 V |
Features & Protection(1) | ||
Warranty Length (months) | null months | 48 months |
Build & Durability(3) | ||
Motor Type | Brushed Permanent Magnet TENV | Corrosion-resistant |
Weight (lbs) | 8.4 lbs | 4.19 lbs |
Diaphragm Material | TPV | Santoprene |
Installation & Compatibility(1) | ||
Self-Priming Lift (ft) | 8 ft | 6 ft |
Products in the top-left offer the best value (high score, low price).
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.
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