When it's time to move water out of your boat's bilge or sump, you're facing two very different pump philosophies. One is a flexible impeller pump built as a permanent part of a marine plumbing system; the other is a submersible electric pump you drop into the water and let run. In the marine pumps and plumbing sanitation category, the Jabsco Water Puppy and the 1100 GPH submersible bilge pump represent those two approaches at opposite ends of the price spectrum. The Jabsco is a bronze-bodied flexible impeller pump, while the submersible is a compact vortex pump with a thermoplastic body and stainless steel shaft. The right choice comes down to how your boat is set up and how much pump you actually need.
Quick verdict
If you're building or upgrading a permanent bilge/sump system and need a self-priming flexible impeller pump, the Jabsco Water Puppy is the more capable marine component. If you want a simple submersible pump for clearing water fast, occasional use, or as a backup, the 1100 GPH submersible bilge pump gets the job done at a much lower price. The Jabsco wins on construction and pump type; the submersible wins on price and simplicity.
Comparison table
| Feature | Jabsco 18660-0121 | 1100 GPH Submersible Bilge Pump |
|---|---|---|
| Price | USD 189.27 | USD 9.99 |
| Relative price | ||
| Pump type | Flexible impeller | Submersible vortex |
| Voltage | 12V | 12V |
| Body material | Bronze | ABS and thermoplastic |
| Condition | New other (see details) | New |
Where the Jabsco Water Puppy wins
The Jabsco is the better choice when you need a true impeller pump for a marine bilge or sump installation. Its bronze body is a durable, corrosion-resistant material that belongs near saltwater. The flexible impeller design can handle suction, so it can pull water through hoses and lift it from a sump rather than relying on submersion. If you're working on a boat where the pump needs to be a permanent, serviceable part of the plumbing, this is the unit to choose.
Where the 1100 GPH submersible wins
The submersible bilge pump is all about simplicity and low cost. It's a compact pump with a vortex design, a stainless steel shaft, and a removable filter that makes cleaning easy. It can run briefly without water without burning out, and its suction does not need to be fully submerged. That makes it a versatile option for a primary pump in a small boat or a secondary pump for emergency water removal.
Product notes
Jabsco 18660-0121 Marine Water Puppy Bilge/Sump Flexible Impeller Pump
The Jabsco Water Puppy is a flexible impeller pump that comes as a single Jabsco 12V Water Puppy unit. Its bronze housing is the standout feature, giving it a marine-grade feel that matches its higher price point. The flexible impeller makes it a self-priming pump, which is a real advantage when you're moving water through a hose line from a bilge or sump. This is the pump you choose when the pump needs to be integrated into a boat's plumbing system rather than just dropped into the water. The main drawback is the listing condition: it's described as "New other (see details)," so you may be getting an open-box or customer-returned unit, and the price is significantly higher than a basic submersible pump. If you need a permanent, repairable impeller pump, this is the one to build around.
1100 GPH Submersible Bilge Pump 12V Marine Boat Electric Water Pump 29mm Outlet
The 1100 GPH submersible bilge pump is a compact, no-nonsense pump that moves up to 1100 gallons per hour with a low current draw. It features an ABS sealed housing, a stainless steel shaft, and a thermoplastic body, plus a removable filter that pops off for quick cleaning. The vortex impeller can run briefly without water, and the suction inlet does not need to be fully submerged, so you can clear puddles in shallow bilges. The 29mm outlet takes a standard 1-1/8-inch hose, and the 18AWG wire is roughly a meter long. Just keep in mind that batteries and wiring accessories are not included, so you'll need to supply your own 12V power and connections. For the price, it's an easy pump to keep as a spare or install in a small boat.
Final choice by use case
Choose the Jabsco Water Puppy if you need a self-priming flexible impeller pump for a permanent marine bilge or sump installation and you're comfortable with a higher investment in bronze construction. Choose the 1100 GPH submersible bilge pump if you want a low-cost, compact pump for occasional water removal, a backup, or a small boat, and you can handle the wiring yourself.
