Water in the bilge is the one problem every boat owner hopes to solve fast. The pump you pick has to clear the water, run off your boat's 12V system, and connect to the hose you already have. Two submersible 1100 GPH pumps are on the table here, and they differ mainly in hose connection size and listed price. Both are new, both run at 1100 gallons per hour, and both are built to drop into the bilge and pump water out. The real question is which hose opening matches your boat's plumbing-and how much you want to pay.
Quick Verdict
The quick call is simple: match the pump to your existing hose opening, then let the listed price settle it. The larger-hose product comes in at the lower price, while the smaller-hose product from The Perfect Part is positioned for more than just bilge duty. That makes hose opening and price the two things to weigh.
Key Comparison
| Feature | 1-1/8" Hose Model | 3/4" Hose Model (The Perfect Part) |
|---|---|---|
| Listed price | USD 9.50 | USD 12.95 |
| Hose opening | 1-1/8" | 3/4" |
| Flow rate | 1100 GPH | 1100 GPH |
| Power | 12V electric | 12V electric |
| Condition | New | New |
| Pump type | Submersible | Submersible |
| UPC / GTIN | Does not apply | 781111636424 |
Where Each Pump Fits Best
The larger-hose model makes sense when your priority is the lower listed price and your boat's plumbing already matches that opening. It stays focused on marine bilge and sump drainage, so it suits the straightforward boat-drainage job.
The smaller-hose model from The Perfect Part fits when you need the more compact hose connection or plan to use the pump beyond the bilge-it is positioned for aquariums, fountains, and runabouts as well.
1100GPH 12V Electric Marine Submersible Bilge Sump Water Pump Boat 1-1/8" Hose
This is the lower-priced of the two, and the hose opening is the headline difference. If your boat's existing discharge line matches this size, the pump lines up cleanly with your plumbing. It is a compact electric pump intended for marine bilge and sump drainage, and it is in new condition. The main catch is the size commitment: a larger outlet needs a matching hose run, so measure what you have before ordering. If your setup uses a smaller line, the other pump is the size that matches. Choose this one when you want the lower listed price and already know your plumbing fits the larger opening.
1100GPH 12V Electric Marine Submersible Bilge Sump Water Pump For Boat 3/4" Hose
This is the higher-priced option, and it comes from The Perfect Part with a UPC of 781111636424. The smaller hose opening is the key fit detail: this pump is positioned for more than just marine drainage, with aquariums, fishing boats, fountains, and runabouts all mentioned as intended uses. It also comes with an ABS waterproof casing, marine sealant on the wire ends, and a strong motor. The trade-off is the higher listed price and the smaller outlet, which won't match a larger existing hose. If your hose size matches this opening, or you want a single pump that can also handle fountain or aquarium duty, this is the one to choose.
Final Choice by Use Case
If your boat is already plumbed with a 1-1/8" hose, the $9.50 model is the straightforward pick at the lower listed price. If the boat runs a 3/4" hose, or you would rather have a named brand and a product that covers fountains, aquariums, and runabouts, the $12.95 pump from The Perfect Part is the one to start with. In the end, the decision comes down to hose opening and the $3.45 difference in listed price.
