SEAFLO 01 Series 350 GPH Bilge Pump, 12V Marine Submersible 3/4" Outlet with Anti-Airlock Protection

The SEAFLO 01 Series 350 GPH bilge pump is a compact, fully submersible 12V pump that evacuates water quickly with anti-airlock protection and a durable marine-grade build.

This pump is designed to handle routine bilge clearing on small to mid-size boats and marine craft. With a 350 gallons-per-hour flow rate, sealed quiet motor, and a 3/4" outlet, the unit balances performance and compact size. Built to resist corrosion and backed by a 4-year limited warranty, it fits both manual switch and float-switch installations and meets CE, RoHS, ISO 8846, and ISO 8849 standards for marine use.

How much water can this pump move and what are its electrical needs?

The SEAFLO 01 Series moves up to 350 GPH (gallons per hour) at 12 volts, drawing about 1.0 amp in normal operation. It has a maximum head of 3.3 feet (1 meter), which defines the vertical lift capability, and comes with a 3.0-foot (1 meter) wire lead for installation.

• Flow rate: 350 GPH for fast bilge clearing
• Voltage: 12V DC, ideal for standard marine battery systems
• Current draw: 1.0 A—energy-efficient for extended use
• Max head: 3.3 ft (1 m); use within this lift for reliable flow

What design features prevent clogs and airlocks?

This model includes anti-airlock protection that keeps the pump primed and moving water even when air pockets occur. The snap-off strainer base allows quick removal and cleaning to eliminate debris buildup, reducing downtime and maintenance complexity.

• Anti-airlock design for continuous discharge when encountering air
• Snap-off strainer base for fast debris removal and cleaning
• 3/4" (19 mm) outlet to reduce clogging from larger particulates

How durable and sea-ready is the SEAFLO 01 Series?

Constructed with marine-grade materials, this pump uses a stainless steel shaft, moisture-tight seals, and blocked wiring to resist saltwater corrosion and vibration. The sealed motor is built for quiet operation and longevity, and the pump is fully submersible to meet standard marine safety and performance certifications.

• Stainless steel shaft and sealed motor for corrosion resistance
• Moisture-tight seals and marine-grade blocked wiring for durability
• Certifications: CE, RoHS, ISO 8846, ISO 8849 for marine compliance

How easy is installation and maintenance?

The 01 Series is designed for user-friendly installation and upkeep. It accepts either a direct switch or a float switch for automatic operation and includes a user-removable strainer for cleaning without tools.

• Compatible with manual or float-switch control systems
• 3.0-foot (1 m) wire lead simplifies wiring to battery or switch
• Snap-off strainer for maintenance without disassembling the unit

Who is this for: The SEAFLO 01 Series 350 GPH bilge pump is best for small powerboats, sailboats, inflatables, dinghies, and other recreational craft that need a low-profile, energy-efficient pump with dependable anti-airlock performance. It's also suited for boat owners who prioritize corrosion resistance, quiet operation, and a long manufacturer-backed warranty for peace of mind.