Rule 20DA 800 GPH 12V 3.4 Amp Submersible Bilge Pump
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You have 30 days to request a return. All sale items are final sale.
Keep bilge water under control with the Rule 20DA submersible bilge pump—built for compact installations and efficient 12V performance. This non-automatic pump is designed to deliver rated pumping output at true 12V, and includes built-in protection features for pump and vessel.
Key Features
- Optimized impeller design helps deliver higher flow at the same amperage
- Built-in Thermal Cut-Off (TCO) provides added protection for pump and vessel
- Back flow prevention helps reduce the amount of water left behind in the bilge
- Hidden air vents in the body help prevent air locking in challenging plumbing installations and support check-valve performance
- Threaded discharge connection supports easier installation and easier maintenance
- Designed as a non-automatic pump (requires a Rule float switch or other activation/control)
Product Compatibility
- Marine bilge water removal (fresh or salt water)
- Use with an appropriate activation switch/float switch or control system for non-automatic operation
Product Details
- Brand/Model: Rule 20DA
- Capacity/Flow: 800 GPH (rated)
- Voltage: 12V
- Current Draw: 3.4 Amp
- Type: Submersible electric bilge pump
- Operation: Non-automatic operation (requires switch/control to run)
- Max Head: 12 ft
- Discharge: 3/4 in
- Inlet/Suction: bottom strainer suction
- Flow Rates (performance by head): 13.3 GPM @ 0 ft of head; 9.1 GPM @ 5 ft of head; 3.0 GPM @ 10 ft of head
- GPH by head: 800 GPH @ 0 ft of head; 550 GPH @ 5 ft of head; 180 GPH @ 10 ft of head
- Max temperature: 120°F
- Shaft material: Stainless steel
- Body materials: ABS/Nylon/Stainless steel
Parts Desk Insights
Best Use Case: A strong choice for boats that need efficient, space-saving bilge pumping on a true 12V system—especially when plumbing can be difficult to keep primed (air-locked situations).
Common Issues: For non-automatic pumps, most performance problems come from activation/control setup—confirm the float switch/switch wiring and operation. Also check the discharge plumbing and fittings during install/maintenance to minimize restricted flow, and ensure the pump strainer remains clear for consistent suction.
Related Products & Accessories
- Browse Bilge Pumps - Find compatible Rule bilge pump switches/controls and replacement pumps in the Bilge Pumps collection.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 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.