WaterBoost- Slimline EXT
WaterBoost WB-EXT Slimline 500 Esybox Variable Speed 2503110
In stock
- Established 1975
- Trusted by thousands of customers
The 500 litre WaterBoost “Slimline EXT” system, complete with a DAB Esybox external variable speed pump, has been engineered to deliver a reliable and cost-effective solution for properties experiencing low water pressure or restricted flow.
Ideal for customers looking to minimise installation costs while still investing in an energy-efficient, high-quality boosting system, the Slimline EXT offers exceptional performance with long-term reliability.
The external variable speed pump is designed to sit neatly alongside the storage tank, ensuring a clean, compact installation while allowing easy access for servicing and maintenance.
Capable of delivering up to 80 litres per minute at 3 bar, the Slimline EXT provides strong and consistent water pressure, making it well suited to modern household demand and multi-outlet usage.
With dimensions of 700mm wide and 1500mm high, the tank is designed to fit through a standard doorway and is supplied fully pre-built and ready to install, eliminating the need for on-site assembly. This makes it ideal for both new and retrofit installations, allowing it to be conveniently positioned in garages, utility rooms, or under-stair spaces where available.
The Slimline range is perfectly suited to 3–5 bedroom homes, particularly where water pressure is poor and floor space is limited, offering a discreet yet powerful boosting solution without compromise.
More about this product
The Slimline range comes complete with –
- Enduramaxx Blue 500 litre WRAS approved slimine water tank – 5 year warranty 700mm dia x 1500mm h
- DAB Esybox variable speed pump inc pre-fitted plug – 3 year warranty
- 2 x Connections union
- 1 x 3/4″ ball float valve and float
- 1 x 600mm tank to pump connection hose
- 1 x pre-fitted 1″ tank outlet
- 1 x Bylaw 30 kit
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Tank Dimensions PDFDownload
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Esybox Tech PDFDownload
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Brochure PDFDownload
Standard delivery:
Standard delivery is free for all orders except for some low cost/low margin items where standard delivery is £6.75. Some difficult to transport goods also have a varying carriage charge applied.
Please contact us for the estimated standard delivery times of the products that we have in stock, by dropping us a message on our Whatsapp or Live chat.
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 £15.00 + 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.





