SEAFLO 13B Series 800 GPH Automatic Bilge Pump 12V 800 GPH, Electronic Water Sensor, Anti‑Airlock, 18 ft Head

The SEAFLO 13B Series 800 GPH Automatic Bilge Pump is a 12V submersible pump with electronic water sensing that evacuates up to 800 gallons per hour, includes anti‑airlock protection, and fits compact bilges.

This automatic bilge pump combines a high flow rate with a compact footprint and marine‑grade construction so you can manage unwanted bilge water reliably. It operates on standard 12V systems, uses an electronic water sensor to switch on and off without manual intervention, and delivers up to an 18‑foot head for forceful discharge. The cartridge motor design simplifies maintenance, and the pump is offered with a four‑year warranty for added owner confidence.

How does the SEAFLO 13B detect and remove bilge water?

The unit uses an electronic water detection circuit that activates the pump automatically when water reaches the sensor’s threshold, then shuts off when the bilge is dry. That automatic behavior reduces the need for constant checks and lowers the risk of unattended flooding.

• Electronic water sensing for hands‑free operation
• Automatic on/off cycle to prevent running dry
• Anti‑airlock design minimizes stalled starts
• Cartridge motor for quick access and servicing

What pumping performance and fittings does it offer?

This SEAFLO pump moves up to 800 gallons per hour and can push water to an 18‑foot head, giving it the power to clear most small boat bilges. It comes with two outlet size options to match common hose setups for easy plumbing.

• Flow rate: 800 GPH (gallons per hour)
• Maximum head: 18 feet for effective vertical discharge
• Outlet sizes: 1.0 in and 1 1/8 in compatible fittings
• Submersible configuration for direct bilge placement

Is this pump durable and easy to maintain?

Materials and the cartridge motor are chosen for marine environments so the pump resists corrosion and simplifies routine upkeep. If debris or wear affects performance, the cartridge assembly can be removed and inspected or replaced without disturbing the whole installation.

• Marine‑grade construction for saltwater resistance
• Cartridge motor design for fast servicing
• Anti‑airlock reduces cavitation and restart issues
• Compact form factor fits tight bilge compartments

What electrical and warranty considerations should I know?

Designed for 12‑volt marine systems, the SEAFLO 13B integrates smoothly with onboard batteries and wiring; proper fuse protection and correct gauge wiring are recommended. SEAFLO backs this model with a four‑year warranty, which provides extended coverage compared with many competitors.

• Operating voltage: 12 V DC, compatible with typical marine electrical systems
• Recommendation: install inline fuse and correct wire gauge
• Warranty: 4 years from SEAFLO for parts and workmanship
• Anti‑airlock and sensing electronics require correct mounting for best results

Who is this for: The SEAFLO 13B Series 800 GPH Automatic Bilge Pump suits small powerboats, sailboats, and workboats that need reliable, automatic bilge water removal in a compact package. It’s a good choice for owners who want strong flow and vertical lift, simple servicing via a cartridge motor, and automatic sensing to reduce routine checks. Installers and DIY owners will appreciate the available outlet sizes and the pump’s corrosion‑resistant design.