Rule 500 GPH Automatic Bilge Pump & Switch Combo — 12V (RUL-25DA-35A)
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Automatic Bilge Protection — 500 GPH, Ready to Install
The Rule 500 GPH Bilge Pump & Switch Combo (RUL-25DA-35A) is a complete 12V bilge management system that keeps your bilge dry automatically. The integrated float switch activates the pump when water rises and shuts it off when the bilge is clear — no manual intervention required. A manual override switch gives you direct control when you need it.
Key Features
- 500 GPH Pumping Capacity — effective water removal for small to medium-sized vessels
- 12V DC Operation — compatible with standard 12V marine electrical systems
- Integrated Automatic Float Switch — activates and deactivates the pump automatically based on water level
- Manual Override Switch — direct pump control independent of the float switch
- Corrosion-Resistant Construction — built for continuous exposure to bilge water and the marine environment
- Compact Design — fits most standard bilge areas
Specifications
- Voltage: 12V DC
- Capacity: 500 GPH
- Kit Includes: Pump and automatic float switch
Installation Notes
Wire with appropriate fuse protection sized to the pump’s current draw. Verify pump orientation for optimal performance and ensure the float switch has adequate clearance to activate before water reaches critical levels. Follow the manufacturer’s wiring diagram for the manual override switch connection.
Parts Desk Insights
SKU RUL-25DA-35A is a Rule Industries bilge pump and float switch combo under the Rule brand. The combo format simplifies specification — pump and switch are matched and ready to install as a system. Position for customers replacing a failed bilge pump or outfitting a new vessel where automatic bilge protection is required.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.