DAB Esybox Mini3
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.
Amazon $1,547$1,547
The DAB Esybox Mini3 and the GWANZI K90S600L are evenly matched, rated 3.4 and 3.4. The DAB Esybox Mini3 leads on pressure. The GWANZI K90S600L costs $1,147.01 less ($399.99 vs $1,547).
GWANZI K90S600L
#10 in Variable speedFull review
An inline inverter booster with a stainless shell for tight spaces. The cheaper H600 PRO from the same maker outpumps it.
Amazon $399.99$399.99
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the DAB Esybox Mini3 for pressure (180 ft maximum head (about 78 psi) vs 150 ft maximum head (about 65 psi)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every variable speed water pressure booster pump; a clear win is highlighted. How we rank explains each one.
| Factor weight | DAB Esybox Mini3 | GWANZI K90S600L |
|---|---|---|
| Overall rating | 3.4/5 | 3.4/5 |
| Value 30% | 0 $73.32 per gpm ($1,547, 21.1 gpm) | 59 $18.18 per gpm ($399.99, 22 gpm) |
| Flow 15% | 60 21.1 gpm maximum | 64 22 gpm maximum |
| Pressure 15% | 100 180 ft maximum head (about 78 psi) | 75 150 ft maximum head (about 65 psi) |
| Protection 10% | 100 dry-run and overheat protection | 100 dry-run and overheat protection |
| Noise 10% | 100 45 dBA | 50 noise rating not published (neutral score used) |
| Warranty 20% | 50 warranty not published (neutral score used) | 0 1-year warranty |
Specifications
| DAB Esybox Mini3 | GWANZI K90S600L | |
|---|---|---|
| Pumping | ||
| Drive | Variable speed | Variable speed |
| Maximum flow | 21.1 gpm | 22 gpm |
| Maximum head | 180 ft (78 psi) | 150 ft (65 psi) |
| Motor | 1.1 HP | 1 HP |
| Input power | 850 W | 800 W |
| Ports | - | 1 in |
| Protection and build | ||
| Built-in tank | Yes | - |
| Dry-run protection | Yes | Yes |
| Overheat protection | Yes | Yes |
| Voltage | - | 120 V |
| Noise | 45 dBA | - |
| Weight | 32 lb | 12 lb |
| Warranty | - | 1 year |