Name: WaterBoost WB-Coffin 450 Esybox Variable Speed 2207110
Brand: WaterBoost
SKU: WBKcoffin450esybox
Price: 1390.8 GBP
Availability: InStock

WaterBoost WB-Coffin 450 Esybox Variable Speed 2207110

WaterBoost WB-Coffin 450 Esybox Variable Speed 2207110 - Image 2

WaterBoost WB-Coffin 450 Esybox Variable Speed 2207110 - Image 3

WaterBoost WB-Coffin 450 Esybox Variable Speed 2207110 - Image 4

WaterBoost WB-Coffin 450 Esybox Variable Speed 2207110 - Image 5

In stock

Established 1975
Trusted by thousands of customers

The WaterBoost WB-Coffin 450 Esybox is a compact, variable-speed water boosting system engineered to overcome low water pressure or restricted flow in domestic and light commercial applications. Designed for installations where space is limited, it delivers a cost-effective solution while maintaining exceptional performance, reliability, and build quality.

The system combines a robust 450-litre WRAS-approved coffin-style tank with the proven DAB Esybox booster pump, providing efficient and consistent pressure boosting of up to 80 litres per minute at 3 bar. This makes it an ideal solution for properties requiring enhanced water performance across showers, taps, and appliances, without the footprint or complexity of larger boosting systems.

With compact dimensions of 1680mm (L) × 695mm (W) × 580mm (H), the WB-Coffin 450 Esybox is perfectly suited to installations where height restrictions or access limitations are key considerations, including garages, cupboards, and plant rooms. The tank is supplied pre-fitted with a By-law 30 kit and ½” ball valve, and all interconnecting pipework is included as standard.

80l/min

@ 3 bar

450L

Tank storage

43dB(A)

Ultra quiet

3yr

DAB warranty

WiFi · Google · Alexa
WRAS tank & pump
580mm height
Direct mains
Pipework included
6.5 bar max

Full Description

More about this product

Full Description

Product overview

The WaterBoost WB-Coffin 450 Esybox brings the full performance of the DAB Esybox pump to the largest coffin-format boosting system in the WB-Coffin range. The 450-litre WRAS-approved coffin tank sits horizontally at just 580mm tall — fitting under stairs, in low-ceiling garages, and in plant rooms where upright tanks will not — while the Esybox delivers a powerful 80 l/min at 3 bar.

The mains supply connects directly to the tank via the pre-fitted ½” ball float valve. The DAB Esybox variable speed pump draws from the tank and continuously adjusts its speed to match demand — maintaining consistent pressure across multiple simultaneous outlets with minimal energy use and 43 dB(A) noise.

WiFi via the H2D app, Google Home, and Alexa compatible. Supplied complete with By-law 30 kit, ½” ball float valve, and all interconnecting pipework. 3-year DAB pump warranty. Please contact us for delivery timescales.

450^L

Tank storage

80^l/min

Flow @ 3 bar

65^m

Max head

43^dB

Pump noise at 1m

Tank & pump WRAS approved · Direct mains connection

What’s included

DAB Esybox pump

Variable speed pump delivering 80 l/min at 3 bar, 65m max head, 6.5 bar max working pressure, 1.4 kW motor. Built-in inverter, 2L expansion vessel, WiFi (H2D app), Google Home, Alexa, 43 dB(A). 3-year DAB warranty.

450L coffin-style tank

WRAS-approved 450-litre horizontal coffin tank — 1680 × 695 × 580mm. Connects directly to mains via pre-fitted ½” ball float valve and By-law 30 kit. All tank-to-pump PVC pipework included.

Key features

80 l/min @ 3 bar

Full Esybox performance in a low-profile coffin format — suits larger homes with high simultaneous demand across multiple outlets.

450L in a low-profile format

Only 580mm tall — the largest WB-Coffin capacity that still fits under stairs, in low garages, and in spaces where upright tanks cannot.

Direct mains connection

Tank connects directly to mains via pre-fitted ½” ball float valve and By-law 30 kit. Minimum 0.5 bar inlet pressure required.

WiFi and voice control

H2D app for remote monitoring and pressure adjustment. Google Home and Amazon Alexa compatible — “Hey Google, power shower.”

43 dB(A) — exceptionally quiet

Water-cooled motor in sound-absorbing housing. Among the quietest booster pumps available — suitable for spaces close to living areas.

Tank and pump both WRAS approved

Both tank and pump carry WRAS approval — fully compliant for potable water use in the UK.

6.5 bar max working pressure

Higher max pressure than the Mini3 range (5.5 bar) — suitable where greater pressure headroom is required.

Complete and ready to install

By-law 30 kit, ½” ball float valve, and all interconnecting PVC pipework included. No additional fittings required.

3-year DAB pump warranty

3-year manufacturer warranty on the Esybox when purchased from Anglian Pumping Services.

Typical applications

Larger homes with high demand

4+ bathroom properties needing maximum storage and 80 l/min flow where height is restricted.

Height-restricted installations

Delivers Esybox high-flow performance at just 580mm tall — under stairs, low garages, and constrained plant rooms.

Slow or intermittent mains supply

450L storage fills overnight, ensuring a full tank is available for peak morning and evening demand.

Combination boilers and unvented cylinders

Maintains the mains pressure required for combi boilers and unvented hot water systems to perform at full output.

Light commercial premises

B&Bs, small hotels, and offices needing reliable high-flow pressure across multiple simultaneous outlets.

Water Regulations compliance

The tank and ball float valve provide the break between mains and pump, ensuring full compliance with Water Regulations.

Technical specifications

DAB Esybox pump

Flow rate	80 l/min @ 3 bar
Max head	65 metres
Max working pressure	6.5 bar
Motor power	1.4 kW
Noise	43 dB(A) at 1m
Connectivity	WiFi — H2D app, Google Home, Alexa
WRAS	Yes
Warranty	3 years (DAB)

Coffin tank

Capacity	450 litres
Dimensions (L × W × H)	1680 × 695 × 580mm
Mains inlet	Direct mains — ½” BSP ball float valve
WRAS	Yes — WRAS-approved material
Included	By-law 30 kit, ½” ball float valve, PVC pipework
Min inlet pressure	0.5 bar recommended

How it compares

Three 450L coffin-format boosting systems — all connect directly to mains, all WRAS-approved tanks. The WB-Coffin 450 Esybox and the Powertank 450 Variable Speed both deliver 80 l/min; the key differences are price, WiFi, and Fluid Category.

Feature	WB-Coffin 450 Esybox this product	Powertank COFFIN 450 Fixed	Powertank COFFIN 450 Variable
Tank capacity	450L WRAS coffin	450L WRAS coffin	450L WRAS coffin
Mains connection	Direct — ½” ball float valve	Direct — ½” ball float valve	Direct — ½” ball float valve
Pump type	Variable speed (DAB Esybox)	Fixed speed (Presflo Multi)	Variable speed (Steadypress)
Flow rate @ 3 bar	80 l/min	40 l/min	80 l/min
Pressure vessel	Yes — 2L in pump	Yes — 3L in controller	Yes — 8L external vessel
WiFi / app	Yes — H2D, Google, Alexa	No	No
Fluid Category	Cat 1–3 (potable)	Up to Cat 4	Up to Cat 4
Pump warranty	3 years (DAB)	Contact us	Contact us
Price (ex VAT)	£1,159.00	£975.00	£1,695.00

Which should I choose?
WB-Coffin 450 Esybox — the best all-round choice for potable water at £1,159 + VAT. Same 80 l/min as the Powertank Variable Speed but £536 less, plus WiFi and voice control and a 3-year warranty. Ideal for larger homes and light commercial with height restrictions.
Powertank COFFIN 450 Fixed — lowest cost at £975 + VAT but only 40 l/min. Choose if Fluid Category 4 compliance is needed and flow demand is modest.
Powertank COFFIN 450 Variable — same 80 l/min with Fluid Category 4 compliance, but at £1,695 + VAT — £536 more than the WB-Coffin Esybox with no WiFi. Choose only if Fluid Category 4 is a firm requirement.

Frequently asked questions

How much does it cost and how is it delivered?

£1,159.00 + VAT (£1,390.80 inc VAT). Please contact us via WhatsApp or phone for delivery timescales on this product.

How does the mains connection work?

The mains supply connects directly to the tank via the pre-fitted ½” ball float valve. The tank fills automatically and acts as a storage buffer. The Esybox draws from the tank and boosts pressure throughout the property. A minimum of 0.5 bar incoming pressure is required for the standard fill valve.

What is the difference between the Esybox and the Esybox Mini3?

The Esybox delivers 80 l/min @ 3 bar, 65m head, 6.5 bar max, and 43 dB(A). The Esybox Mini3 delivers 50 l/min @ 3 bar, 55m head, 5.5 bar max, and 45 dB(A). Both include WiFi and voice control. Choose the Esybox for larger homes with higher simultaneous demand; the Mini3 for 1–3 bathroom properties where 50 l/min is sufficient.

How does the WiFi and voice control work?

The DAB Esybox connects to the H2D 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.

Is there an Esybox coffin system in a smaller size?

Yes — the WB-Coffin 320 Esybox (£1,069 + VAT) uses the same pump in a 320-litre coffin tank at 500mm height. If 50 l/min is sufficient, the WB-Coffin 450 Mini3 (£835 + VAT) delivers 50 l/min in the same 450L coffin format at a lower price.

What warranty is included?

3 years DAB manufacturer warranty on the Esybox pump when purchased from Anglian Pumping Services.

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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.

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