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Accumulator Vessels Horizontal

Cold water Horizontal accumulator vessels. Maintenance free and WRAS approved.
  • Diaphragm design
  • Patened stainless steel water connection
  • Virgin polypropylene liner
  • Condensation reducing design
  • Two-part polyurethane, epoxy primed paint finish
  • Max working pressure 10 bar
  • Factory pre-charge 1.4 bar
  • Max temp 90 degree C
Logo for GWS
    pwb-60lh
    Logo for GWS
    Accumulator Vessels Horizontal
    GWS 8 litre accumulator Horizontal Pressurewave PWB-8LH

    Cold water Horizontal accumulator vessels. Maintenance free and WRAS approved. Diaphragm design Patened stainless steel water connection Virgin polypropylene liner Condensation reducing design Two-part polyurethane,…

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    pwb-60lh
    Logo for GWS
    Accumulator Vessels Horizontal
    GWS 12 litre accumulator Horizontal PressureWave PWB-12LH

    Cold water Horizontal accumulator vessels. Maintenance free and WRAS approved. Diaphragm design Patened stainless steel water connection Virgin polypropylene liner Condensation reducing design Two-part polyurethane,…

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    pwb-60lh
    Logo for GWS
    Accumulator Vessels Horizontal
    GWS 20 litre accumulator Horizontal PressureWave PWB-20LH

    Cold water Horizontal accumulator vessels. Maintenance free and WRAS approved. Diaphragm design Patened stainless steel water connection Virgin polypropylene liner Condensation reducing design Two-part polyurethane,…

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    pwb-60lh
    Logo for GWS
    Accumulator Vessels Horizontal
    GWS 24 litre accumulator Horizontal PressureWave

    Cold water Horizontal accumulator vessels. Maintenance free and WRAS approved. Diaphragm design Patened stainless steel water connection Virgin polypropylene liner Condensation reducing design Two-part polyurethane,…

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    pwb-60lh
    Logo for GWS
    Accumulator Vessels Horizontal
    GWS 35 litre accumulator Horizontal PressureWave PWB-35LH

    Cold water Horizontal accumulator vessels. Maintenance free and WRAS approved. Diaphragm design Patened stainless steel water connection Virgin polypropylene liner Condensation reducing design Two-part polyurethane,…

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    pwb-60lh
    Logo for GWS
    Accumulator Vessels Horizontal
    GWS 60 litre accumulator Horizontal PressureWave PWB-60LH

    Cold water Horizontal accumulator vessels. Maintenance free and WRAS approved. Diaphragm design Patened stainless steel water connection Virgin polypropylene liner Condensation reducing design Two-part polyurethane,…

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    pwb-60lh
    Logo for GWS
    Accumulator Vessels Horizontal
    GWS 80 litre accumulator Horizontal PressureWave PWB-80LH

    Cold water Horizontal accumulator vessels. Maintenance free and WRAS approved. Diaphragm design Patened stainless steel water connection Virgin polypropylene liner Condensation reducing design Two-part polyurethane,…

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    pwb-60lh
    Logo for GWS
    Accumulator Vessels Horizontal
    GWS 100 litre accumulator Horizontal PressureWave PWB-100LH

    Cold water Horizontal accumulator vessels. Maintenance free and WRAS approved. Diaphragm design Patened stainless steel water connection Virgin polypropylene liner Condensation reducing design Two-part polyurethane,…

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    Logo for WaterBoost
    Accumulator Vessels Horizontal
    WaterBoost 150 litre accumulator Horizontal

    Rebranding to WaterBoost Horizontal Accumulators – Solutions for Low Water Flow Applications Water pressure and flow can fluctuate, especially during peak usage times such as…

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    Logo for WaterBoost
    Accumulator Vessels Horizontal
    WaterBoost 200 litre accumulator Horizontal

    Rebranding to WaterBoost Horizontal Accumulators – Solutions for Low Water Flow Applications Water pressure and flow can fluctuate, especially during peak usage times such as…

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    Logo for WaterBoost
    Accumulator Vessels Horizontal
    WaterBoost 250 litre accumulator Horizontal

    Rebranding to WaterBoost Horizontal Accumulators – Solutions for Low Water Flow Applications Water pressure and flow can fluctuate, especially during peak usage times such as…

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    Logo for WaterBoost
    Accumulator Vessels Horizontal
    WaterBoost 300 litre accumulator Horizontal

    Rebranding to WaterBoost Horizontal Accumulators – Solutions for Low Water Flow Applications Water pressure and flow can fluctuate, especially during peak usage times such as…

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Frequently Asked Questions

Quick answers to common questions about the Accumulator Vessels Horizontal. 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 an accumulator tank?

An accumulator tank is a pressurised vessel that connects directly to the mains supply and stores water under pressure. When a tap or shower opens, water discharges immediately from the vessel at full mains pressure rather than drawing only from the street main. This delivers stronger, more consistent flow at peak times. Accumulators have no pump and no moving parts so they are maintenance free and silent.

When should I use an accumulator instead of a pump?

An accumulator is the right solution when static mains pressure is adequate – above 2 bar – but flow is poor or drops during peak demand. It boosts available flow without adding a pump, energy use or noise. If static pressure is below 2 bar, a booster pump is needed instead, or an accumulator combined with a charge pump such as the WaterBoost ACF1.

What size accumulator do I need?

Accumulators are typically sized on a 60 per cent usable rule – a 300 litre vessel delivers around 180 litres of boosted water per cycle. As a guide, a 2 to 3 bedroom home suits a 300 litre vessel such as the GWS GCB-300LV. Larger 4 to 5 bedroom homes or properties with multiple bathrooms typically need 450 to 600 litres. Vertical models save floor space, horizontal models suit lofts and roof spaces.