Rule
Rule Submersible Bilge Pump Range 12V – 360, 500, 800, 1100 GPH – Pumps with Float Switch Options
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The Rule Submersible Bilge Pump Range provides reliable and efficient bilge water removal for small and medium vessels. Available in four variants – 360GPH, 500GPH, 800GPH, and 1100GPH – these 12V DC pumps are lightweight, compact, and designed with a tough plastic body, integ...
The Rule Submersible Bilge Pump Range provides reliable and efficient bilge water removal for small and medium vessels. Available in four variants – 360GPH, 500GPH, 800GPH, and 1100GPH – these 12V DC pumps are lightweight, compact, and designed with a tough plastic body, integral strainer, and threaded discharge for easy installation and maintenance. Most models include integrated or compatible float switch options for automatic operation.
Product Description
The Rule Submersible Bilge Pump Range is engineered to meet the diverse needs of boat owners, from small ski boats to larger leisure craft. Each pump in the range is compact, lightweight, and constructed from durable plastic, ensuring reliable operation in challenging marine environments. The integral strainer prevents debris from clogging the pump, while the quick-release design on most models allows rapid cleaning of internal components.
The 360GPH model is ideal for small vessels, delivering up to 23 litres per minute (5 gallons per minute) with a compact footprint and low amp draw, conserving battery power. The 500GPH variant increases flow while maintaining efficient energy consumption, suitable for medium-sized boats. The 800GPH (20DA) model provides up to 50 litres per minute (13 gallons) and incorporates a built-in thermal cut-off, check valve for backflow prevention, hidden air vents to reduce air-locking, and threaded discharge for easier installation. The 1100GPH variant is the highest-capacity pump in the range, designed for vessels with higher bilge volumes while maintaining the same durable construction and safety features.
All pumps are designed for discharge heads of up to 2 metres and are ignition-protected, meeting ISO8846 (marine ignition) and ISO8849 (bilge pump) standards, ensuring safety and compliance. The pumps’ compact designs and lightweight construction make them easy to install in limited spaces, while their energy-efficient operation minimises battery consumption. The range accommodates both manual operation and automatic activation through compatible float switches (depending on model).
Whether upgrading from older pumps or specifying new installations, the Rule Submersible Bilge Pump Range offers reliable performance, durability, and easy maintenance, making them a trusted choice for boat owners and professionals alike.
Specifications
| Specification | 360GPH | 500GPH | 800GPH (20DA) | 1100GPH |
|---|---|---|---|---|
| Voltage | 12V DC | 12V DC | 12V DC | 12V DC |
| Float Switch | Optional 35A | Optional 35A | Built-in / compatible | Built-in / compatible |
| Maximum Flow Rate | 23 L/min (5 US GPM) | 34 L/min (9 US GPM) | 50 L/min (13 US GPM) | 70 L/min (~18 US GPM) |
| Maximum Discharge Head | 2m | 2m | 2m | 2m |
| Connections / Hose Size | 19mm (3/4") | 19mm (3/4") | 19mm (3/4") | 25mm (1") |
| Fuse | 2.5A | 3A | 5A | 5A |
| Dimensions (H x Base Diameter) | 90 x 60mm | 100 x 60mm | 111 x 64mm | 120 x 70mm |
| Material | Tough Plastic | Tough Plastic | Tough Plastic | Tough Plastic |
| Built-In Thermal Cut-Off | Yes | Yes | Yes | Yes |
| Check Valve | Included | Included | Included | Included |
| Threaded Discharge | No | No | Yes | Yes |
| Air Vents | N/A | N/A | Hidden vents | Hidden vents |
| Approvals | ISO8846, ISO8849 | ISO8846, ISO8849 | ISO8846, ISO8849, CE | ISO8846, ISO8849, CE |
| Ignition Protected | Yes | Yes | Yes | Yes |
| Weight | 0.44kg | 0.55kg | 0.66kg | 0.75kg |
| Warranty | 1 year | 1 year | 3 years | 3 years |
Why buy from Marine Chandlery?
- UK marine specialists, based in North Shields
- Next-day UK delivery available
- Same-day collection from our store
- Expert advice before and after purchase
- Carefully selected marine-grade products
- Secure checkout & trusted payment options










