An inline inverter booster with a stainless shell for tight spaces. The cheaper H600 PRO from the same maker outpumps it.
Amazon $399.99
A compact, quiet inverter booster for a single home that wants a large pressure range and room to add a second pump. Check the voltage and shop around on price.
- 21.1 gpmFlow
- 180 ft (78 psi)Head
- Variable speedDrive
- 1.1 HPMotor
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- Holds a set pressure between 15 and 80 psi with an inverter, so showers stay steady
- Pump, tank, check valve, pressure and flow sensors come in one box, mounted flat, upright or on a wall
- Protects itself against dry running, overheating, freezing and short cycling
- Two units pair wirelessly for more flow later
- The Amazon price is far above what the pump sells for elsewhere
- DAB does not say which voltage this US listing is; confirm before buying
- No warranty term published
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 | 60188927 |
|---|---|
| Pumping | |
| Drive | Variable speed |
| Maximum flow | 21.1 gpm |
| Maximum head | 180 ft (78 psi) |
| Motor | 1.1 HP |
| Input power | 850 W |
| Protection and build | |
| Built-in tank | Yes |
| Dry-run protection | Yes |
| Overheat protection | Yes |
| Noise | 45 dBA |
| Weight | 32 lb |
Alternatives in this drive
An all-in-one inverter booster sold direct by Aquastrong for a house on weak city pressure. A cheaper alternative to a SCALA2 if you accept a louder pump.
Amazon $711The benchmark compact inverter booster for a house of up to three floors and eight taps on weak city pressure. Pay for it when quiet running and steady showers matter more than price.
Amazon $879Compare
Compare the DAB Esybox Mini3 with any other water pressure booster pump →
More from DAB: every DAB product ranked.