Rule 3700 GPH 12V Heavy Duty Submersible Bilge Pump

High-Capacity Marine Bilge Pump for Large Yachts, Motor Cruisers and Commercial Vessels

• Output capacity: 3,700 GPH (14,006 litres per hour)
• 12V DC operation
• Heavy-duty submersible centrifugal bilge pump
• Suitable for large sailboats, motor cruisers and workboats
• 38mm (1-1/2″) discharge outlet connection
• Maximum current draw: up to 20A
• Recommended fuse size: 20–25A
• Dimensions: 180mm height x 135mm base diameter
• Maximum recommended discharge head: 4 metres
• Output up to 220 litres per minute
• Fully submersible design
• Quick-release inlet strainer for easy cleaning and maintenance
• Anti-airlock protection for improved pumping efficiency
• Can run dry without motor damage
• Silent, low-vibration operation
• Stainless steel motor shaft
• Ignition protected for added onboard safety
• Rust and corrosion-resistant construction
• Suitable for use with separate float switches and control panels
• Complies with ISO 8846 and ISO 8849 marine standards

The Rule 3700 GPH 12V Bilge Pump is a powerful heavy-duty pumping solution designed for larger recreational and commercial vessels operating in demanding marine environments. Delivering up to 14,006 litres per hour, it provides rapid bilge water removal to enhance onboard safety during offshore cruising, fishing and commercial operations. Its corrosion-resistant construction, stainless steel shaft and ignition-protected motor make it ideally suited to the harsh conditions encountered around the Irish coastline and offshore waters. The fully submersible design incorporates anti-airlock technology and a removable snap-lock strainer for dependable performance and simplified maintenance. Whether installed as a primary bilge pump or part of a multi-pump safety system, the Rule 3700 offers trusted marine-grade reliability when it matters most.

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