WaterBoost Slimline – Fixed Speed
WaterBoost WB-Fixed 300 Litre Slimline 2302510
- Established 1975
- Trusted by thousands of customers
The WaterBoost WB-Fixed 300 Slimline is a complete, pre-assembled fixed-speed water boosting system designed as a cost-effective solution to low water pressure or restricted flow in 3–5 bedroom homes. A 300-litre WRAS-approved slimline tank (600mm dia × 1200mm high) pairs with the DAB Dtron2 internal fixed-speed pump, delivering a reliable 50 l/min at 3 bar.
The DAB Dtron2 sits submerged inside the tank — no external pump unit, keeping the footprint to a minimum. The tank fits through a standard doorway (600mm wide) and connects directly to the mains via the pre-fitted ¾” ball float valve. Fully pre-assembled — no site build required.
Supplied with ¾” ball float valve, 600mm connection hose, and By-law 30 kit. The tank carries a 5-year warranty and the DAB Dtron2 pump a 3-year warranty. Please contact us for delivery timescales.
Internal pump
Fits through doorway
Direct mains
Pre-assembled
3yr pump warranty
More about this product
The WaterBoost WB-Fixed 300 Slimline delivers reliable fixed-speed water pressure boosting for 3–5 bedroom homes, at the most accessible price in the standard slimline range. A 300-litre WRAS-approved slimline tank pairs with the DAB Dtron2 internal fixed-speed pump, delivering a consistent 50 l/min at 3 bar.
The Dtron2 sits submerged inside the tank — no external pump unit needed. The 600mm diameter tank fits through a standard doorway and stands 1200mm tall — easily sited under stairs, in a garage, or in a utility room. The mains supply connects directly via the pre-fitted ¾” ball float valve. Fully pre-assembled, no site build required.
Supplied with ¾” ball float valve, 600mm tank-to-pump connection hose, and By-law 30 kit. 5-year tank warranty and 3-year DAB Dtron2 pump warranty. Please contact us for delivery timescales.
Three fixed-speed slimline upright boosting systems. The WB-Fixed 300 is the cheapest of the three, yet has the most storage, the highest flow, and named 5-year tank and 3-year pump warranties. The Powertank SLIMLINE options offer Fluid Category 4 compliance for non-potable applications.
WB-Fixed 300 Slimline — the strongest all-round fixed-speed option at the lowest price (£691.65 + VAT). More storage than either Powertank, higher flow (50 vs 40 l/min), internal pump, named 5yr tank and 3yr pump warranties. The right choice for potable water boosting in 3–5 bedroom homes.
Powertank SLIMLINE 200 Fixed — choose if Fluid Category 4 compliance is required and storage and flow requirements are modest. 200L / 40 l/min. £744.60 + VAT.
Powertank SLIMLINE 350 Fixed — choose for Fluid Category 4 with more storage (350L). Still 40 l/min. At £775.00 + VAT it is more expensive than the WB-Fixed 300 with lower flow and no named warranties. Choose only if Cat 4 is required.
How much does it cost and how is it delivered?
What is the DAB Dtron2 and how does it differ from the Esybox Diver?
How does the mains connection work?
Should I choose fixed speed or variable speed?
Will it fit through my doorway?
What warranties are included?
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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