The Shurflo 4158-153-E75 Aqua King II Supreme 5.0 is a high-performance 4-chamber diaphragm fresh water pump designed for marine, RV, and off-grid applications with multiple fixtures. This 12-volt pump delivers an impressive 5.0 GPM flow rate at 55 PSI, providing consistent, home-like shower pressure even when multiple faucets are running simultaneously.
Advanced Bypass Technology:
The built-in mechanical bypass function enables the pump to automatically vary flow rate based on demand conditions without the need for an accumulator tank. This innovative design allows the pump to operate smoothly at both high and low flow conditions with minimal cycling, eliminating the pulsing effect common in standard demand pumps.
Marine-Grade Construction:
- Heavy-duty electro-coated seamless shell motor built to withstand harsh marine environments
- O-ring sealed end bells and fully sealed wire entries on motor shell and pressure switch
- Unique co-molded single-piece diaphragm for long life and reliable performance
- Four independent pump chambers for smooth, consistent water delivery
- Built-in check valve prevents back-flow
- Polypropylene construction resists corrosion
Protection and Safety Features:
- Can run dry without damage
- Thermally protected motor prevents overheating
- Ignition protected and CE rated
- Sealed pressure switch for enhanced durability
- Adjustable pressure switch and bypass settings
- Self-priming up to 6 feet
Technical Specifications:
- Voltage: 12 VDC
- Flow Rate: 5.0 GPM (open flow)
- Pressure: 55 PSI (adjustable demand switch)
- Current Draw: 13 Amps
- Port Size: 1/2" x 14 NPSM male threaded
- Duty Cycle: Intermittent
- Mounts in any position
What's Included:
- Aqua King II Supreme 5.0 pump
- Two 1/2" hose barb straight swivel fittings
- 50 mesh inlet strainer that connects directly to pump inlet port
This pump serves as a replacement for the legacy 5901 series and is ideal for boats, RVs, campers, and mobile water systems requiring reliable, high-volume water delivery. The Aqua King II Supreme delivers professional-grade performance with quiet operation and the legendary Shurflo reliability.
