Shurflo 4138-131-E65 Aqua King II 24V Fresh Water Pump 3.0 GPM 55 PSI

The Shurflo 4138-131-E65 Aqua King II Standard Fresh Water Pump delivers reliable, pressure-regulated water flow for marine and RV fresh water systems. Designed specifically for the harsh marine environment, this 24-volt DC pump features a unique over-molded single-piece diaphragm and internal bypass system that ensures long life and top performance in all plumbing systems.

Key Features:

• Four independent chamber design provides smooth flow at all demand levels with no rapid cycling
• 3.0 GPM flow rate ideal for multi-fixture installations with 2-3 outlets
• 55 PSI shut-off pressure virtually eliminates cycling
• Self-priming up to 6 feet with dry run capability - can run dry without damage
• Sealed motor and pressure switch in seamless, electro-coated housing for corrosion resistance
• Built-in check valve and adjustable pressure switch
• Thermal overload protection and ignition protected for safety
• Polypropylene construction for durability
• Direct replacement for Aqua King 3901 series with same mounting bracket

This automatic demand pump operates quietly and includes two 1/2-inch hose barb fittings (swivel straight adapter 1/2-14 NPT x 1/2" barb). Intermittent duty rated for reliable performance in boats, RVs, and other mobile applications requiring fresh water distribution.