SEAFLO 12V Bilge Pump 500 GPH, 3/4" Outlet Submersible, Anti-Airlock with Stainless Shaft and 4-Year Warranty

The SEAFLO 01 Series 500 GPH Bilge Pump is a compact 12V submersible marine pump engineered to move up to 500 gallons per hour through a 3/4" outlet with anti-airlock protection and a 4-year limited warranty.

Designed for small to medium craft and a variety of marine installations, this SEAFLO SFBP1-G500-01 model balances strong water-moving capacity with corrosion-resistant construction. Its sealed motor and stainless steel shaft make it suitable for saltwater and freshwater bilge systems, while certifications like CE and RoHS confirm it meets recognized safety and environmental standards.

How much water can this pump remove and how fast?

The pump is rated at 500 GPH (gallons per hour) at nominal conditions, providing dependable evacuation capability for typical bilge volumes. It achieves this flow through an efficient impeller and motor combination optimized for continuous marine use.

• Flow rate: 500 GPH (approximately 1893 L/h)
• Outlet size: 3/4" (19 mm) for common hose fittings
• Maximum head: 6.56 feet (2 meters) for vertical lift scenarios

Will it work with my boat's electrical system and switches?

This SEAFLO pump runs on 12V DC and draws about 1.6A in normal operation, with a maximum inrush of up to 4.0A. It can be wired to a manual switch or integrated with a float switch, giving flexibility for automatic or user-controlled bilge management.

• Operating voltage: 12V DC
• Typical current draw: 1.6 amps; max draw: 4.0 amps
• Includes 1 meter (3.0 ft) wire leads for easy connection

What features protect the pump in marine environments?

Materials and design choices focus on durability and reliability in wet, salty conditions. The sealed motor, marine-grade wiring, and stainless steel shaft reduce corrosion and ingress, while anti-airlock design maintains consistent pumping even when air enters the inlet.

• Marine-grade construction: stainless shaft and moisture-tight seals
• Anti-airlock protection to prevent performance loss when air is present
• Certifications: CE, RoHS, ISO 8846, ISO 8849

How easy is maintenance and installation?

The unit is fully submersible and designed for straightforward mounting and service. A snap-off strainer base simplifies cleaning and debris removal, while common outlet sizing and wire leads speed installation.

• Snap-off strainer base for quick access and cleaning
• 3/4" outlet fits standard marine hose clamps and fittings
• Works with both manual and float switches for flexible setups

Who this is for: the SEAFLO 01 Series 500 GPH bilge pump fits boat owners, small commercial craft operators, and DIY marine technicians who need a reliable, compact submersible pump that combines respectable flow, corrosion resistance, and simple upkeep. It's a practical choice for vessels requiring a mid-range pump with anti-airlock behavior, low typical current draw, and the reassurance of a 4-year limited warranty for long-term use.