SEAFLO 53-Series DC Diaphragm Water Pump – 7.0 GPM, 60 PSI, 12V

Meet the SEAFLO 53-Series DC Diaphragm Water Pump — a compact powerhouse built for reliable water flow in boats, RVs, and off-grid systems. Running on 12V, it delivers up to 7.0 GPM with a shut-off at 60 PSI, so you get steady pressure when you need it and energy-conscious operation when you don’t.

Key performance you can rely on

• 7.0 GPM (26.5 LPM) flow with a 60 PSI limit for consistent pressure across multiple fixtures
• Automatic pressure switch activates on demand and stops when water is settled, reducing energy waste
• Integrated bypass helps stabilize pressure and minimizes cycling during low-demand periods

Designed for routine use, this pump can be installed in a wide range of environments—from the shoreline to the campground. The housing and components are chosen for resilience, so everyday tasks feel smoother and more predictable.

Durable design you can trust

• Self-priming with up to 6 feet (1.8 m) suction lift for flexible placement
• Run-dry safe, allowing temporary operation when water is scarce
• 1/2" NPT pipe-thread ports simplify connections and retrofits
• Materials tuned for freshwater and saltwater; EPDM valves with a Santoprene diaphragm resist corrosion
• Continuous duty rating supports long-running transfers, washdowns, and high-use scenarios
• Backed by a 4-year limited warranty for long-term peace of mind

Smart installation is straightforward thanks to standard port sizing and a compact footprint. The automatic pressure switch, bypass stability, and reserve flow help you manage water delivery without overcomplicating your system. The unit’s dependable performance translates to quieter operation and fewer interruptions during busy moments.

Real-world use cases

In a marine setting, the pump maintains steady cockpit or galley water pressure while you move between tasks. On an RV, it supports showers, sinks, and outdoor faucets with consistent reach. In rural or industrial environments, it can transfer water between tanks, wash down equipment, or prime a new line with ease. The combination of run-dry safety and solid priming range reduces the need for manual intervention, giving you flexibility in how you deploy the pump.

SEAFLO’s 53-Series blends rugged hardware with practical features. It’s not a promise of perfect outcomes, but it is a dependable option that could help you achieve steady flow, on-demand operation, and durable performance in demanding conditions.