DAB Esybox Mini3 Variable Speed Water Pressure Booster Pump for Home, 80 PSI Max Boost - 22 GPM Max / 1.1 HP - 115/230V 1Ph / 60212610

Compact automatic pressurisation system for a single residence. Holds steady house pressure, adjustable 15–79 psi, using VFD technology to save energy. Includes pump, smart electronics, pressure and flow sensors, LCD display, built-in expansion tank and check valve — no extra parts needed to install.

Two Esybox Mini3 units pair wirelessly — no controller, no rewiring. Add a second one any time. Run both together for double the flow, or keep one in reserve so the house never loses pressure if the other stops. The optional ESYTWIN MINI dock (60218780) stands them side by side in roughly half the footprint. Maximum two units.

Two units hold more pressure at the same flow. Each carries half the water, so each sits higher on its own curve. Read it off the published curve below: 16 GPM from a single Mini3 comes out at 32 psi; split between two units it comes out nearer 69 psi. The shut-off ceiling at zero flow is unchanged at 80 psi. Maximum two units.

Group figures are read from the published single-pump curve at the flow each pump carries. DAB publishes no combined performance table for the Mini3, so size a pair against the system curve rather than by doubling a single-pump maximum.

How to Connect Multiple DAB Boosters

This is part 60212610, the current Esybox Mini3. It has built-in WiFi and pairing, so two units can be linked for duty assist or duty standby. The earlier part 60188927 looks identical and has neither. Listings elsewhere often do not say which one they are shipping — check the part number, not the photograph.

The figures below are the pressure this pump adds. That is what a pump curve measures — the impeller does not know what pressure is already on its inlet.

Pressure added in PSI, by flow

Converted from the head DAB prints in feet (PSI = ft ÷ 2.31), at every flow DAB tabulates. 0 GPM is DAB’s printed maximum head, 183 ft.

Drawing from a tank, cistern or well — nothing arrives with pressure, so what the pump adds is what you get. Read the table straight through: 8 GPM comes out at 69 psi.

Fed by a city main — the pump adds on top of what already arrives, but the controller will not hold more than 79 psi in total. On a 40 psi main set to 79 psi, the pump only has to add 39 — and at 39 psi of added pressure the table gives you roughly 14 GPM instead of the 4 GPM a tank would. Incoming pressure turns into extra flow at the same set point.

Best operating range: 7 to 13 GPM. This is where the pump turns the most electricity into water pressure. Ask for more flow than it can deliver at your setting and it runs at full speed continuously, which is where motors and seals wear out. Sizing a booster to the building rather than to the headline numbers is what makes it last.

Zero flow is the shut-off point — a ceiling, not a working point. Published maximum flow is 22 GPM, beyond the last tabulated point at 20 GPM. These figures are at full speed; the drive holds lower pressures by running the pump slower. Feet of head = PSI × 2.31. Best operating range is derived from the published duty points — DAB does not publish an efficiency curve for this model. Source: DAB Esybox Mini3 Technical Sheet USA (60182551, 02-2023).

Parts in contact with the liquid, per the manufacturer technical sheet.

This pump connects to H2D, DAB’s official app, which replaces DConnect.

• Free: guided setup, live status and basic parameters, error overview and alarm alerts.
• Free: Power Shower, Good Night quiet mode and monthly water-use tracking.
• Premium subscription: change settings and manage the pump from anywhere, full alarm and usage history, data-log analysis and PDF reports.
• H2D Desktop opens the same installations on a tablet or computer.