When water starts sloshing around your bilge, you need a pump you can trust. But choosing between a high-capacity submersible and a lower-priced unit isn't just about price. You have to consider flow rate, outlet size, mounting space, and how much water your boat actually takes on. Here's a head-to-head comparison of the SEAFLO 01 Series 4700 GPH and the 1100GPH 12V Electric Marine Submersible Bilge Pump to help you decide.
Quick Verdict
The SEAFLO 01 Series 4700 GPH is the right choice if you need maximum water movement from a 12V marine pump and want a fully featured setup. The 1100GPH 12V Electric Marine Submersible Bilge Pump is the better pick when you want a compact, lower-priced pump for a small boat or a secondary backup.
| Feature | SEAFLO 4700 GPH | 1100GPH Submersible |
|---|---|---|
| Price | $99.99 | $8.99 |
| Flow rate | 4700 GPH | 1100 GPH |
| Outlet | 2" | 1-1/8" |
| Voltage | 12V DC | 12V |
| Material | ABS | ABS |
Where Each Product Wins
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- 1100GPH Submersible: The small housing is easy to place in tight spaces, and the straightforward design keeps things simple for basic backup duty.
Product Notes
SEAFLO 01 Series 4700 GPH Bilge Pump 12V, 2" Outlet, Marine, CE & RoHS Certified
This is the heavy lifter of the pair. With a 4700 GPH rating and a 2-inch outlet, it's designed for serious water removal from larger boats or as a primary bilge pump. The anti-airlock protection and snap-off strainer base make installation and cleaning simpler, and the CE & RoHS certification plus 4-year limited warranty add confidence for a marine purchase. The trade-off is physical size and electrical demand: it draws 17.0A with a max draw of 32.1A, so you'll need a properly sized circuit and enough room in the bilge to mount it. If you have the space and power, this is the more capable pump.
1100GPH 12V Electric Marine Submersible Bilge Sump Boat Water Pump 1-1/8" Hose
This compact pump is built for lighter duty. It pushes 1100 GPH, which is plenty for a small boat, kayak, or as a secondary backup. The 1-1/8 inch hose fitting gives you a practical connection point for compatible discharge plumbing, and the submersible design lets you drop it directly into water. The main limitation is that it's non-automatic, meaning it won't switch on by itself, and the lower flow rate isn't ideal for large bilges or heavy water intrusion. For simple jobs where you're willing to switch the pump on manually, this is an easy pump to keep around.
Final Choice by Use Case
For a primary bilge pump on a larger boat, choose the SEAFLO 4700 GPH at $99.99. It's the heavy-duty option for serious water removal. For a small boat or a backup pump you can keep on hand, the 1100GPH pump at $8.99 is a practical, low-priced solution - just remember to switch it on manually.
