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WaterBoost Accumulator Vessels

WaterBoost AWB-450LV — 450 Litre Vertical Accumulator Vessel

In stock

Our Price £816.00 Inc VAT £680.00 Ex VAT
  • Established 1975
  • Trusted by thousands of customers

The WaterBoost AWB-450LV is a 450-litre WRAS-approved vertical accumulator vessel for mains-connected water systems. Accumulators store mains water under pressure — so when you open a tap or shower, you draw instantly from the vessel at full mains pressure rather than waiting for the mains to respond. The result is a noticeably stronger, more consistent flow from every outlet, even during peak demand.

The AWB-450LV operates on a 60% usable volume ratio — delivering approximately 270 litres of high-pressure water before returning to normal mains flow. At a typical shower flow of 12 l/min, 270L supports two simultaneous showers for approximately 11 minutes, or three simultaneous showers for approximately 7.5 minutes before returning to normal mains flow. Diaphragm design, WRAS-approved construction, maintenance free. The AWB-450LV is suited to 3 bedroom+ and larger properties with higher simultaneous demand.

Requires a minimum 2 bar static mains pressure to operate effectively. If your static pressure is below 2 bar, add the WaterBoost ACF1 accumulator booster pump to charge the vessel to the required working pressure.

450L
Vessel size
270L
Usable output
10bar
Max pressure
WRAS
Approved
WRAS approved
Maintenance free
Diaphragm design
3 bedroom+ homes
ACF1 pump if <2 bar
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