Johnson Pumps 10-24689-03 F4B-19 Flexible Impeller Pump 12V 12.5 GPM

The Johnson Pumps F4B-19 is a self-priming, DC-driven flexible impeller pump designed for versatile marine applications. This heavy-duty 12-volt pump delivers a maximum flow rate of 12.5 GPM (48 liters per minute) and features reliable self-priming capability up to 4 meters, making it ideal for situations where the pump must lift water from below the mounting location.

Key Features:

• Bronze pump body construction for corrosion resistance and durability in marine environments
• Flexible nitrile rubber impeller (replacement part 09-824P-9) for efficient, gentle pumping action
• 1/2" BSP port connections for easy plumbing integration
• 12-volt DC motor operation for standard marine electrical systems
• Self-priming up to 4 meters (13 feet) vertical lift
• Heavy-duty construction for reliable performance in demanding conditions

Applications:

• Bilge pumping for removing water from the boat
• Deck wash systems for cleaning and maintenance
• Fresh water circulation and transfer
• Diesel and oil refueling at dockside
• General water transfer and circulation systems

The F4B-19's flexible design makes it suitable for both continuous duty and intermittent operation. The pump can be combined with optional accessories including pressure switches for automatic operation, check valves, and complete deck wash kits. The flexible impeller design ensures smooth, pulse-free flow while being gentle on the pumped liquid, making it appropriate for both clean water and light fuel transfer applications.