WaterBoost WB – Advant slim 2000 Esybox 2104110DSL

Name: WaterBoost WB – Advant slim 2000 Esybox 2104110DSL
Brand: WaterBoost
SKU: WBK2000esyboxsl
Price: 2567.14 GBP
Availability: InStock

WaterBoost WB – Advant slim 2000 Esybox 2104110DSL - Image 3

WaterBoost WB – Advant slim 2000 Esybox 2104110DSL - Image 4

WaterBoost WB – Advant slim 2000 Esybox 2104110DSL - Image 5

Any questions? Message us on WhatsApp

Established 1975
Trusted by thousands of customers

The WaterBoost WB-Advant Slim 2000 Esybox combines two 1000-litre WRAS-approved UK-manufactured slimline tanks (each 600mm W × 1250mm L × 1703mm H) linked together for a 2000-litre storage buffer, paired with the DAB Esybox external variable speed pump — delivering 80 l/min at 3 bar and up to 6.5 bar maximum, with WiFi, DConnect app, H2D technology, Google Home and Alexa voice control.

Both tanks are just 600mm wide — so each passes through a standard doorway with 162mm to spare. That gives you 2000L of storage in installations no standard-footprint 2000L tank can reach, with flexible arrangement options: side-by-side, end-to-end, or even in separate rooms linked by pipework. The Esybox sits alongside the tanks for full pump accessibility, running at an exceptionally quiet 43 dB(A). All interconnecting pipework included, tank-to-tank connection kit supplied — no site fabrication required.

Each UK-manufactured tank carries an outstanding 10-year warranty and the DAB Esybox a 3-year warranty. Delivery is typically 1–2 working days.

80l/min

@ 3 bar

2000L

Tank storage

600mm

Slim width

10yr

Tank warranty

Twin-tank flexibility
Fits through standard doorway
WiFi · H2D · Google · Alexa
WRAS tanks & pump
6.5 bar max
43 dB(A) — ultra quiet
10yr warranty each tank
1–2 day delivery

Full Description

More about this product

Full Description

Product overview

The WaterBoost WB-Advant Slim 2000 Esybox is a large-capacity twin-tank slimline boosting system combining two 1000-litre WRAS-approved slimline storage tanks with the DAB Esybox variable speed pump. It is engineered for very large domestic properties, small commercial premises, and off-grid installations where 2000 litres of storage buffer matters — but the standard-footprint 2000L Advant tank simply cannot get into the plant room.

Both tanks are just 600mm wide, so each passes through a standard 762mm internal doorway with 162mm to spare. That opens up flexible installation options no monolithic 2000L tank can offer: side-by-side (1200mm wide combined), end-to-end (2500mm long), or in separate spaces linked by pipework. Capable of delivering 80 l/min at 3 bar and up to 6.5 bar maximum, the Esybox continuously adjusts its speed to match demand — maintaining consistent pressure across multiple outlets while significantly reducing energy consumption. The external pump is mounted alongside the tanks for easy access.

Each tank carries a 10-year warranty and the Esybox a 3-year DAB manufacturer warranty. WiFi connectivity via the DConnect app allows remote monitoring; H2D wireless allows a second Esybox to be added later. Delivery is typically 1–2 working days.

2000^L

Combined storage

80^l/min

Flow @ 3 bar

600^mm

Slim width per tank

43^dB

Pump noise at 1m

Tanks WRAS approved · Pump WRAS approved

What’s included

DAB Esybox booster pump

Variable speed pump delivering 80 l/min at 3 bar, 6.5 bar max working pressure. Built-in inverter, WiFi (DConnect app), H2D wireless technology, Google Home, Alexa, 43 dB(A). 3-year DAB warranty. Pre-fitted with plug.

2 × 1000-litre Advant slimline storage tanks

Two WRAS-approved 1000-litre vertical baffled slimline Advant tanks — each 600mm W × 1250mm L × 1703mm H. Each pre-fitted with By-law 30 kit and ¾” ball float valve. UK manufactured, 100% rust-proof, 10-year tank warranty each. Tank-to-tank connection kit, tank-to-pump pipework, and pump-to-outlet PVC pipework all included.

Key features

2000L buffer — slim access

Twice the water reserve of the 1000L Slim, in an installation format that still fits through a standard doorway. Each 600mm-wide tank clears 762mm doorways with 162mm to spare.

Flexible installation options

Side-by-side (1200mm), end-to-end (2500mm), or split between two rooms linked by pipework. Choose whichever configuration fits the space you have.

2 × WRAS-approved tanks

100% rust-proof, UK manufactured, 10-year warranty each. Vertical baffled construction for structural integrity in the slim profile.

Variable speed — 80 l/min @ 3 bar

Esybox adjusts speed to match demand — constant pressure at every outlet, up to 50% energy saving over fixed-speed systems.

H2D wireless — upgrade ready

Built-in H2D wireless allows a second Esybox to be paired later for duty/assist twin operation — upgrade to full pump redundancy and 140 l/min without replacing the tanks.

WiFi and voice control

DAB DConnect app for remote monitoring and pressure adjustment. Google Home and Amazon Alexa compatible.

43 dB(A) — exceptionally quiet

Water-cooled motor in a sound-absorbing housing. Quiet enough for garages and plant rooms close to living areas.

Extended peak capacity

The 2000L buffer covers around 25 minutes of continuous peak demand at 80 l/min before refill from mains — essential for large properties, slow-filling mains, or extended peak windows.

Ready to install

Pre-fitted By-law 30 kits, ¾” ball float valves, tank-to-tank connection kit, and all tank-to-pump PVC pipework included. Minimal on-site fabrication.

Typical applications

Very large domestic properties

6+ bedroom homes, multi-family properties, or large country houses where 1000L isn’t enough buffer for peak demand periods.

Off-grid & borehole installations

Where mains supply is limited or absent, the 2000L reserve provides extended autonomy from your borehole, spring, or intermittent supply.

Small commercial & hospitality

B&Bs, small hotels, guesthouses and holiday-let clusters where extended peak morning demand needs a larger buffer than the 1000L slim can provide.

Slow-filling mains supply

Where the mains cannot refill a 1000L tank fast enough for extended peak use — 2000L gives you the reserve to bridge slow refill periods.

Restricted access — every install

Where a full-footprint 2000L Advant can’t reach the plant room — the twin-tank approach turns a 600mm-wide access route into a 2000L install.

Split-room installations

Where no single space can house 2000L of tank, the two tanks can be installed in separate rooms and linked by pipework.

Technical specifications

Esybox pump

Flow rate	80 l/min @ 3 bar
Max pressure	6.5 bar
Pump type	Variable speed — external
Noise	43 dB(A) at 1m
Connectivity	WiFi, H2D wireless, DConnect, Google, Alexa
Supply	240V, 50Hz — pre-fitted plug
WRAS	Yes
Warranty	3 years (DAB)

Storage tanks — 2 × 1000L

Combined capacity	2000 litres
Number of tanks	2 × 1000L slimline
Per-tank dimensions (W × L × H)	600mm × 1250mm × 1703mm
Side-by-side footprint	1200mm × 1250mm × 1703mm
End-to-end footprint	600mm × 2500mm × 1703mm
Material	WRAS-approved MDPE polyethylene
Construction	Vertical baffled, 100% rust-proof, UK manufactured
Included	Tank-to-tank connection kit, By-law 30 kits, ¾” ball float valves, PVC pipework
Warranty (each tank)	10 years

!The Esybox cannot connect directly to the mains. The tanks are supplied from the mains water inlet and the pump draws from the interconnected tanks. In-service combined weight is approximately 2100kg — floor loading is critical and must be confirmed before install. Consider distributing tanks across separate floor points if loading is a concern.

How it compares

Four large-capacity Esybox options — three slimline (600mm access) and the standard-footprint 2000L. Same 10-year tank warranty across the range.

Feature	WB-Advant Slim 1000 Esybox	WB-Advant Slim 2000 Esybox this product	WB-Advant 2000 Esybox	WB-Advant Slim 1000 Twin
Storage capacity	1000L	2000L	2000L	1000L
Access width	600mm	600mm per tank	1350mm	600mm
Fits through standard doorway	Yes	Yes — each tank	No	Yes
Pump(s)	1 × DAB Esybox	1 × DAB Esybox	1 × DAB Esybox	2 × DAB Esybox
Flow rate	80 l/min @ 3 bar	80 l/min @ 3 bar	80 l/min @ 3 bar	140 l/min @ 3 bar
Max pressure	6.5 bar	6.5 bar	6.5 bar	6.5 bar
Peak duration @ 80 l/min	~12 min	~25 min	~25 min	~7 min @ 140 l/min
Pump redundancy	Single — H2D-ready	Single — H2D-ready	Single — H2D-ready	Duty/Assist
Tank warranty	10 years	10 years each	10 years	10 years

Which should I choose?
WB-Advant Slim 1000 Esybox — single 1000L slim tank. Choose where 1000L reserve is enough and only one tank is needed.
WB-Advant Slim 2000 Esybox — two 1000L slim tanks linked together for 2000L reserve. Same pump and flow, but twice the buffer. Choose this where you need more reserve and access is restricted — the standard 2000L simply cannot fit.
WB-Advant 2000 Esybox — standard-footprint 2000L in a single tank. Only viable where access allows a 1350mm-wide tank; not suitable for restricted plant rooms.
WB-Advant Slim 1000 Twin — single 1000L slim tank with twin pumps for 140 l/min and full redundancy. Choose this where peak flow rate matters more than storage buffer, or where continuous supply during pump service is critical.

Frequently asked questions

Will each tank fit through a standard doorway?

Yes — each tank is 600mm wide, so each passes through a standard 762mm (30″) internal doorway with 162mm to spare. The tanks are transported separately and connected on-site with the supplied tank-to-tank link kit. Always measure the narrowest point on the install route first, including any tight corners and ceiling clearance for the 1703mm tank height.

How much floor space do the two tanks need?

You have flexibility in how they’re arranged: side-by-side takes about 1200mm × 1250mm; end-to-end takes about 600mm × 2500mm. Both configurations are 1703mm tall. If neither fits your space, the tanks can be installed in separate rooms linked by pipework — giving true installation flexibility no monolithic 2000L tank can offer.

How is 2000L different from the 1000L Slim in terms of usable performance?

The pump flow rate is identical — both deliver 80 l/min at 3 bar. The difference is how long that peak flow can be sustained before the mains needs to refill. At 80 l/min: 1000L lasts around 12 minutes of continuous peak demand; 2000L lasts around 25 minutes. Choose 2000L where peak demand periods are extended, or where the mains supply refills slowly.

How are the two tanks connected?

The tanks are linked by a supplied tank-to-tank connection kit that maintains a common water level between them — the pump draws from either tank and both fill from the mains via the ball float valves. This means each tank effectively behaves as one large 2000L reservoir.

Can I add a second pump later?

Yes — the Esybox has DAB H2D wireless built in, so a second Esybox can be paired to run as duty/assist without replacing the tanks or original pump. Combined flow becomes 140 l/min and you gain true pump redundancy.

What’s the total in-service weight?

Combined in-service (filled) weight is approximately 2100kg. Floor loading is a critical consideration — the slab or floor structure must support this on the full contact footprint. If floor loading is a concern, the two tanks can be installed in separate rooms to distribute the load across different foundation points.

Can the pump connect directly to the mains?

No — the Esybox cannot connect directly to the mains. The mains supply fills the tanks via the pre-fitted ball float valves, and the pump draws from the tanks. This ensures full compliance with Water Regulations and provides the storage buffer for peak demand periods.

How does the WiFi and voice control work?

The DAB Esybox connects to the DConnect app via built-in WiFi for remote pressure monitoring, adjustment, and fault alerts. It also integrates with Google Home and Amazon Alexa — say “Hey Google, power shower” to boost pressure, or “Hey Google, sleep mode” to quieten it at night.

Are the tanks WRAS approved?

Yes — both storage tanks are manufactured from WRAS-approved polyethylene and are fully compliant for potable water storage. The DAB Esybox pump is also WRAS approved for potable water use.

What warranties are included?

10 years on each storage tank, and 3 years DAB manufacturer warranty on the Esybox pump — when purchased from Anglian Pumping Services.

Downloads

Delivery Information

Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.

Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).

Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.

Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.

Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.

You may also need

WaterBoost – Advant

WaterBoost WB - Advant 1000 Esybox 2104110

The WaterBoost WB-Advant 1000 Esybox provides large-scale boosting for high-demand domestic and light commercial properties. A 1000-litre WRAS-approved UK-manufactured Advant tank (760mm W × 1225mm…

View Product

WaterBoost Slimline – Variable Speed

WaterBoost WB-INT Slimline 500 Variable Speed 2409310

The WaterBoost WB-INT Slimline 500 is a complete, pre-built variable-speed water boosting system for high-demand 3–5 bedroom homes. A 500-litre WRAS-approved upright slimline tank pairs…

View Product

WaterBoost – Advant

WaterBoost WB - Advant 1000 Variable Speed 2104310

The WaterBoost WB-Advant 1000 Variable Speed is a compact, self-contained high-performance boosting system for larger domestic and light commercial properties. A 1000-litre WRAS-approved UK-manufactured Advant…

View Product

WaterBoost ATX Whole-House Mains Pressure Booster

WaterBoost ATX-450 PURE Twin Whole House Mains Pressure Booster

The WaterBoost ATX-450 Twin Pure is the highest-capacity Pure system in the range, pairing two 450-litre Flow-Thru™ anti-Legionella vessels with a single variable speed pump…

View Product

Frequently Asked Questions

Quick answers to common questions about the WaterBoost WB – Advant slim 2000 Esybox 2104110DSL. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.

What is a mains pressure boosting system?

A mains pressure boosting system increases the pressure and flow of water from the incoming mains supply into a property. It typically combines a pump and a storage or expansion tank, drawing water from the mains and delivering it to taps, showers and appliances at a stronger, more consistent pressure. They are used where the incoming mains is too weak to serve modern outlets reliably.

When do I need a mains booster pump?

You normally need a mains booster if static mains pressure is below 1.5 to 2 bar, if showers run weakly when other taps are open, or if combi boilers struggle to deliver hot water. Anglian Pumping recommends checking static pressure at the stop tap before specifying a system, then choosing a model rated for the number of bathrooms and outlets in the property.

What size mains booster do I need for my home?

Sizing depends on the number of bathrooms, the type of fittings and the static mains pressure. As a guide, a 1 to 2 bathroom property with combi boiler or single shower often needs 1.6 to 3 bar boost. A 2 to 3 bathroom property typically needs 3 to 4.5 bar with an integral break tank. Larger homes need a tank-and-pump system such as the DAB Esybox with Esytank or a Powertank set.

What is a water booster pump?

A water booster pump increases the pressure of an existing water supply to give stronger flow at taps, showers and appliances. It can be a small inline pump fitted to the incoming mains, or a larger pump and tank set that draws from a break tank to feed the whole house. Boosters do not create water – they raise the pressure of the water already coming in.

What is the difference between an inline booster and a tank-and-pump booster?

An inline booster connects straight onto the incoming mains and is limited to 12 litres per minute under UK water regulations – examples include the Salamander HomeBoost and WaterBoost WB-Compact. A tank-and-pump booster, such as the Grundfos Home Booster or DAB Esybox with Esytank, draws from a break tank and can deliver much higher flow rates for larger homes with multiple bathrooms.

What is a variable speed booster pump?

A variable speed booster uses an inverter to adjust pump speed in real time to match demand. It maintains constant pressure as outlets open and close, runs more quietly than a fixed-speed pump and typically saves up to 50 per cent of the energy a fixed-speed equivalent would use. The DAB Esybox, DAB Esybox Mini 3 and Grundfos Scala2 are common variable speed examples.

More about this product

You may also need

Related products

Frequently Asked Questions