SEAFLO 22-Series 12V Water Pump — 1.3 GPM, 100 PSI | Marine, RV & Off-Grid

The SEAFLO 22-Series is a 12V on-demand diaphragm pump that gives a boat, RV, camper or off-grid cabin pressurized water at the tap. A built-in pressure switch starts the pump when you open a faucet or sprayer and stops it when you close it, so it only draws power while water is flowing.

• Open flow: 1.3 GPM (5.3 LPM)
• Shut-off pressure: 100 PSI (6.9 BAR)
• Self-priming: up to 6 ft (1.8 m) suction lift
• Ports: 3/8" hose barb
• Max water temperature: 140°F (60°C)
• Valves and diaphragm: EPDM valves, Santoprene diaphragm

1.3 GPM is a modest flow suited to a galley sink, a hand-washing station or a small shower, and a good match where battery capacity is limited. The internal bypass reduces rapid on-off cycling when a tap is only partly open, which keeps pressure steadier and is easier on the switch.

Self-priming to 6 ft means the pump can sit above the tank and still draw water up, giving you flexibility in a tight locker or bay. It's also designed to run dry without damage, a real advantage when a tank empties unnoticed.

In the box

The pump, 3/8" hose barb fittings, pressure switch, quick-connect wiring, installation instructions and user manual.

Beyond drinking water, the pump suits transfer, filtration, spraying and circulation jobs, including small irrigation transfer setups.

Good to know: install a strainer on the inlet side to keep debris out of the valves, and winterize the pump and lines before freezing weather.