The DAB ESYBOX is an all-in-one electronic water pressure system — a self-priming, multi-stage booster pump with a built-in variable-speed inverter, pressure and flow sensors, an integrated expansion tank, and an LCD display in one compact unit. Instead of running a fixed-speed pump on and off against a pressure switch, its inverter varies motor speed to ensure constant pressure in relation to the flow rate. DAB rates it at up to 32 gpm and up to 213 ft of head, with a maximum operating pressure of 8 bar (115 psi). This page gives DAB’s published specifications, explains why stable pressure matters for uniform irrigation, and states plainly what DAB does and does not claim — including that DAB positions it for domestic/residential potable-water pressurisation and garden irrigation, not specifically as a hydroponic reservoir pump.
What it is
The DAB ESYBOX is a self-priming, multi-stage pump with electronic inverter management, pressure and flow sensors, an adjustable high-resolution LCD display, and an integrated expansion tank, packaged as a single all-in-one pressurisation unit. DAB describes it as DAB’s integrated electronic water pressurisation system for domestic and residential use, and states it is suitable for use with potable water and in domestic plants for gardening and irrigation. Its motor is water-cooled, and the pump sits inside a protective, sound-damping ABS shell on anti-vibration feet, which is how DAB keeps the unit quiet. Unlike a bare pump, everything needed to hold a set pressure — the inverter drive, the sensors, and a small buffer tank — is inside the one housing.
Guaranteed analysis and specifications
| Product type | self-priming multi-stage inverter booster / all-in-one electronic pressurisation system |
|---|---|
| Max flow rate | up to 32 gpm (about 120 l/min) |
| Max head | up to 213 ft (about 65 m) |
| Max operating pressure | 8 bar (800 kPa / 115 psi) |
| Settable constant pressure | adjustable from 15 to 85 psi |
| Pressure control | integrated variable-speed inverter with pressure and flow sensors that keeps constant pressure in relation to flow |
| Integrated tank | 2 litre (about 0.5 US gallon) built-in expansion tank |
| Max suction / self-priming depth | 26 ft (8 m) |
| Motor power | 1.55 kW (2.11 HP) |
| Power supply | 220-240 V, 50/60 Hz single-phase |
| Connections | 1″ NPT inlet and 1″ NPT outlet |
| Liquid temperature | 32 to 95 F for domestic use (up to 104 F for other uses) |
| Protection rating | IPX4 motor protection, insulation class F |
| Noise | 45 dB under normal operation |
Why choose the DAB ESYBOX
- Constant pressure from a variable-speed inverter. Rather than cycling a fixed-speed pump against a switch, its built-in inverter and pressure/flow sensors hold constant pressure in relation to flow. DAB states the inverter system provides the comfort of constant water pressure, while saving energy too.
- Everything in one unit. It is a self-priming multi-stage pump with the inverter, sensors, LCD, and expansion tank integrated, so you are not assembling a pump, controller, and pressure tank separately.
- Self-priming with real suction lift. It can draw from a source below the pump — DAB rates a maximum suction depth of 26 ft (8 m) — which suits pulling from a tank, cistern, or shallow well.
- Adjustable set pressure. The constant pressure can be set anywhere from 15 to 85 psi, so you can dial the delivery pressure your lines and emitters want.
- Quiet, compact packaging. The water-cooled motor, sound-damping ABS shell, and anti-vibration feet keep it to 45 dB under normal operation.
Best uses for the ESYBOX
- Whole-property water pressurisation. DAB positions it as an integrated electronic water pressurisation system for domestic and residential use.
- Garden and irrigation supply. DAB states it is suitable for potable water and for use in domestic plants for gardening and irrigation, which is where a constant-pressure feed matters most.
- Drawing from a tank or cistern. Because it is self-priming to 26 ft (8 m), it can lift from a stored-water source rather than needing a flooded inlet.
- Multi-pump groups. DAB notes it is suitable for creating groups of up to 4 pumps for higher combined demand.
Why constant pressure matters for irrigation uniformity
The reason a constant-pressure pump is worth having for irrigation is a physical one about how emitters behave. Irrigation components such as sprinklers, drip emitters, and micro-sprinklers are designed to operate within specific pressure ranges, and stabilising pressure is what helps ensure that each irrigation device applies water at its intended rate and pattern. When pressure drifts off, output drifts with it: when operating pressure falls below the design range, water application becomes inadequate, potentially leading to plant stress, reduced growth, and yield loss, while when pressure exceeds the design range, problems such as misting, uneven distribution, and damage to system components can occur. A variable-speed inverter pump that holds a set pressure directly addresses this drift at the source. This is the general horticultural-engineering mechanism from university-extension guidance; DAB’s “constant pressure” wording describes the same benefit for the pump side of the system.
Compatibility and installation notes
DAB does publish several installation-relevant facts; anything it does not state is held below rather than guessed.
- Connections: it has 1″ NPT inlet and outlet ports.
- Power: it runs on 220-240 V, 50/60 Hz single-phase.
- Liquid it is rated for: 32 to 95 F for domestic use, up to 104 F for other uses, and it is specified for potable water.
- Orientation: DAB states it may be installed either vertically or horizontally, in closed spaces without a high level of air exchange.
- Environmental limit: the maximum ambient temperature is 122 F, and the motor carries an IPX4 protection rating.
How it compares to a conventional pump-plus-tank setup
This table is factual — it does not claim the ESYBOX out-performs alternatives for your specific system; that is a grower’s judgement. Figures for the ESYBOX are DAB’s; the conventional column is a general description of a fixed-speed pump paired with a pressure tank and switch.
| Factor | DAB ESYBOX | Fixed-speed pump + pressure tank/switch |
|---|---|---|
| Pressure control | variable-speed inverter holds constant pressure in relation to flow | cycles on/off between a cut-in and cut-out pressure band |
| Integration | pump, inverter, sensors, LCD, and expansion tank in one unit | separate pump, controller, and pressure tank |
| Suction | self-priming to 26 ft (8 m) | self-priming or flooded-suction, varies by model |
| Set pressure | adjustable 15-85 psi | set by the pressure switch band |
| Why it matters for emitters | stabilising pressure helps ensure each irrigation device applies water at its intended rate and pattern | |
Frequently asked questions
What is the ESYBOX, in one line? A self-priming multi-stage inverter booster pump with integrated sensors, LCD, and expansion tank — an all-in-one electronic water pressure system.
How much flow and pressure does it make? DAB rates it at up to 32 gpm, up to 213 ft of head, and a maximum operating pressure of 8 bar (115 psi).
Can I set the pressure it holds? Yes — the constant pressure is adjustable from 15 to 85 psi.
Can it pull water up from a tank? Yes — it is self-priming to a maximum suction depth of 26 ft (8 m).
Is it made for hydroponic reservoirs? DAB does not say so. It states the ESYBOX is for potable water and domestic gardening and irrigation; any hydroponic-reservoir role is a grower’s judgement, not a DAB claim.
Who this is for — and who should skip it
Suited: growers and property owners who need to turn an inconsistent or gravity-only supply into steady, adjustable pressure for irrigation and household use — especially where the water source sits below the pump and needs self-priming lift, and where holding a set pressure for emitter uniformity matters.
Not for / its limits: DAB positions the ESYBOX for domestic and residential potable-water pressurisation and garden irrigation — it is not marketed by DAB as a hydroponic nutrient-reservoir or dosing pump, and we do not state that it is. It is a whole-line pressure unit, not a small in-tank circulation pump, and its 1.55 kW (2.11 HP) motor and 32 gpm capacity are sized for real household/irrigation demand, so it is oversized for a single small tent. It needs 220-240 V power. DAB does not publish (on the sources we read) a shipping weight, warranty term, price, an energy-saving percentage, a specific drip-emitter compatibility list, or any yield/performance figure — so those are held here rather than guessed, and no efficacy claim beyond DAB’s own “constant pressure / saving energy” wording is made.
Not sure a whole-line pressure system fits your setup? Add to cart, or talk to a grower about whether an inverter booster or a smaller reservoir pump is the right tool for your system.
Sources
- DAB Pumps — E.SYBOX US technical sheet (self-priming multi-stage inverter description; flow up to 32 gpm; head up to 213 ft; max pressure 115 psi; settable 15-85 psi; suction 26 ft; liquid/ambient temperature; IPX4; 45 dB; potable water / domestic gardening and irrigation; groups of up to 4; vertical or horizontal install; motor 1.55 kW / 2.11 HP; 220-240 V; 1″ NPT; retrieved 2026-07-06): https://dabpumps.us/sites/dabpumps.us/files/2016-07/E.SYBOX_TS_USA.pdf
- DAB Pumps — EsyBox NPT product page (“ensure constant pressure in relation to the flow rate”; self-priming multi-stage pump with electronic inverter control; retrieved 2026-07-06): https://dabpumps.us/en/ESYBOX-NPT
- DAB Pumps — E.SYBOX line catalogue CAT14 (max operating pressure 8 bar / 800 kPa; integrated 2 litre expansion tank; capacity to 120 l/min; head to 65 m; max suction depth 8 m; 1.55 kW / 2.11 HP; 220-240 V; vertical or horizontal install; retrieved 2026-07-06): https://dna.dabpumps.com/dat/Docs/DAB/EN/CAT14_ESYBOX.pdf
- Michigan State University Extension — The importance of monitoring water pressure in your irrigation system (components designed for specific pressure ranges; low- and high-pressure effects on application and uniformity; regulators stabilise pressure so each device applies water at its intended rate and pattern; retrieved 2026-07-06): https://www.canr.msu.edu/news/importance-of-monitoring-water-pressure-in-your-irrigation-system
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