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1100GPH 12V Marine Bilge Pump: Is This $9.50 Submersible Pump Enough for Your Boat?

A close look at the 1100GPH 12V submersible marine bilge pump, including its 1-1/8-inch hose connection, practical fit for boat bilges and sumps, and the wiring and switching you'll likely need to plan for.

Last updated Aug 17, 2026

Water in the bilge is a problem that shows up quietly: rain, spray, or condensation collects below deck, and if it isn't moved out, it can turn a good day on the water into a day of bailing. The decision for boat owners is finding a pump that matches the boat's electrical system, fits the space, and connects to the hose you already have.

Quick verdict

The 1100GPH 12V Electric Marine Submersible Bilge Sump Water Pump is a straightforward option: it moves a rated 1100 gallons per hour on a 12V electrical system, uses a submersible body that sits directly in water, and connects to a 1-1/8-inch hose. At USD 9.50, it's a low-cost way to clear water from a boat bilge, sump, or similar area.

Who it suits

This pump fits boat owners who want a compact pump for a bilge or sump and prefer to handle their own wiring and switching. If you already have a compatible electrical circuit and a chase for a drainage hose, this unit offers a simple way to add water removal without a complex install.

What stands out

1100GPH 12V Electric Marine Submersible Bilge Sump Water Pump Boat 1-1/8" Hose

1100GPH 12V Electric Marine Submersible Bilge Sump Water Pump Boat 1-1/8" Hose

The headline detail is the 1100 GPH capacity at 12V, which gives this small submersible pump a serious water-moving capability. The submersible build means it can be placed directly in the water it needs to remove, and the 1-1/8-inch hose connection pairs with a common marine hose size. The unit is new, so you're getting a fresh pump. If moving water quickly from a 12V boat electrical system is your priority, this pump delivers that at USD 9.50. On the other side, the pump on its own won't make your bilge automatic; you'll need to bring the wiring and switching.

Meaningful trade-offs

Remember that this is a drainage pump, not a complete automatic bilge system. If you want hands-free operation, you'll need to build that into your setup with a switch or controller. It's also worth confirming that your existing hose and fitting match the pump's connection before you install.

Bottom line

For boat owners who want a straightforward bilge pump to handle routine water removal, the 1100GPH 12V Electric Marine Submersible Bilge Sump Water Pump is a practical choice. With careful wiring and switching, it can work as a simple part of your onboard toolkit. Just plan for the rest of the installation around the pump itself.

Products in this article
1100GPH 12V Electric Marine Submersible Bilge Sump Water Pump Boat 1-1/8" HoseUSD 9.50View on eBay
1100GPH 12V Electric Marine Submersible Bilge Sump Water Pump Boat 1-1/8" HoseUSD 9.50View on eBay

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