Why it matters
The 2771-20 runs on Milwaukee's M18 REDLITHIUM batteries, so you can move water where there's no outlet. It's rated at up to 8 GPM and 18 ft of head.
It's sold as a bare tool: the battery and charger are extra.
Who it's for, and who should skip it
Good fit if
- M18 tool owners
- Jobs away from power
- Water heaters and tanks
Look elsewhere if
- Buyers without M18 batteries
- Large floods
- Submerging
Pros and cons
Pros
- Cordless
- M18 platform
- Known tool brand
Cons
- Battery sold separately
- Price
- Modest flow
Limitations to weigh
- Transfer pumps sit outside the water and must not run dry.
- Runtime depends on the battery size you use.
Specifications
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Material | Plastic | Retailer |
|---|---|---|
| Dimensions (seller) | 15"L x 7"W x 8"H | Retailer |
| Max flow (maker) | 8 GPM | Retailer |
| Max head / lift (maker) | 18 ft | Retailer |
| Voltage | 18 V | Retailer |
| Compatible devices | M18 REDLITHIUM battery packs | Retailer |
| Model number | 2771-20 | Retailer |
Alternatives worth comparing
More utility & transfer pumps we cover
Final verdict
The pick if you already own M18 batteries.
Where to buy
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Questions buyers ask
Does it include a battery?
No, it's tool only.
How much does it pump?
Up to 8 GPM.