For a smaller house whose supply pressure is very low and needs a big lift rather than a lot of flow.
Amazon $1,134.66
A tough, well warranted small pump for a cabin, shed or tiny home on a tank.
- 3.3 gpmFlow
- 104 ft (45 psi)Head
- Fixed speedDrive
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- A 4 year warranty, the longest of any pump here
- Can run dry without damage when the tank empties
- Adjustable switch from 17 to 60 psi
- Plugs into a wall outlet
- 3.3 gpm suits one fixture at a time
- Diaphragm pumps pulse and hum more than centrifugal boosters
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its drive. How we rank explains each one.
Specifications
| Model number | SFDPA1-033-045-33 |
|---|---|
| Pumping | |
| Drive | Fixed speed |
| Maximum flow | 3.3 gpm |
| Maximum head | 104 ft (45 psi) |
| Ports | 0.5 in |
| Protection and build | |
| Built-in tank | No |
| Voltage | 120 V |
| Weight | 4.2 lb |
| Warranty | 4 years |
Alternatives in this drive
An inexpensive plug-in pump for a small cabin or RV hookup on a tank.
Amazon $81.69A tidy all-in-one booster for a low pressure supply or a storage tank where steady constant pressure is not essential. Most buyers spending this much should step up to the SCALA2.
Amazon $821.64Compare
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