Shurflo Aqua King II 3.0 — 12V Fresh Water Pump (3.0 GPM, 55 PSI)

Shurflo Aqua King II 3.0 — 12V RV/Van Fresh Water Pump

The workhorse pressure-demand water pump for van, RV, and off-grid fresh water systems. Self-priming, quiet, runs on 12VDC, automatically cycles on when you open a tap and off when you close it.

Key Features

• 3.0 GPM flow rate — sized for a single-fixture van or small-RV system
• 55 PSI max pressure — strong steady flow at the tap
• Pressure-demand switching — turns on when flow is needed, off when closed
• Self-priming up to 6 feet vertical lift
• Built-in check valve — won't back-drain when pump stops
• Quiet operation — smoother than older Shurflo models
• 12VDC, 7.5A draw at full load

Ideal For

• Van builds with a single galley sink + optional shower
• Small-to-mid RVs needing reliable water pressure
• Off-grid cabin cold-water feed from a tank

Pairs Well With

• Standard fresh water tank (connect tank outlet to pump inlet)
• Blue Sea 7235 15A circuit breaker — protects the pump circuit

Planning your van plumbing? Use our free System Build Helper to plan water system wiring into your overall 12V electrical layout.