WaterBoost ATX Whole-House Mains Pressure Booster

Name: WaterBoost ATX Whole-House Mains Pressure Booster
Brand: WaterBoost
SKU: GROUPATX
Price: 679.2 GBP
Availability: InStock

The WaterBoost ATX range is a family of all-in-one whole-house mains pressure boosters that connect directly to your incoming cold water mains — boosting both pressure and flow throughout the property the moment a tap or shower is opened. No break tank, no loft tank, no overflow: just a sealed, pressurised system in a single compact unit.

Each ATX pairs a sealed accumulator vessel with a variable speed inverter pump, delivering up to 45 l/min at a strong, steady 3.2 bar — the ideal fix for homes and properties struggling with weak mains pressure. Choose your capacity from 60 L to 450 L to match your demand.

45l/min

Peak flow

3.2bar

Max pressure

60–450L

Range

5yr tank 3yr pump

Warranty

Direct mains Sealed — no air contact WRAS approved Maintenance free Variable speed No overflow Quiet — 40 dB(A)

Why choose WaterBoost ATX?

✓ Direct mains connection

No break tank, no loft tank and no overflow — a single compact unit with just two water connections.

✓ Pressure and flow

Boosts both across the whole property — stronger showers, faster baths, better performance at every outlet.

✓ Genuinely efficient

Variable speed inverter generates only the pressure your mains can’t — no wasted energy, no fixed worst-case output.

✓ Sealed & hygienic

A fully sealed, pressurised circuit — no open water surface, no overflow, WRAS approved for potable water.

✓ Fit and forget

Completely maintenance-free — no filters, no service visits, with dry-run protection and a 30-second pump swap.

✓ Sized to your home

Six capacities from 60 L to 450 L — from a one-bed flat to a high-demand family home with several bathrooms.

Which size do I need?

Larger vessels store more pressurised water, so they sustain a higher boosted flow for longer before recharging. Match the model to your number of bathrooms and peak simultaneous demand.

Model	Capacity	Sustained flow	Best for
ATX-150	150 L · 90 L useable	18 l/min @ 3.2 bar	1–2 bed · entry-level
ATX-200	200 L · 120 L useable	22 l/min @ 3.2 bar	2–4 bed · single bathroom
ATX-250	250 L · 150 L useable	24.5 l/min @ 3.2 bar	3–4 bed · mid-range
ATX-300	300 L · 180 L useable	27 l/min @ 3.2 bar	3–5 bed · extended demand
ATX-450	450 L · 270 L useable	36 l/min @ 3.2 bar	4+ bed · highest capacity

Peak burst flow is up to 45 l/min across the range. Compact 60 L and 80 L models are also available for flats and smaller properties. Flow rates depend on your incoming mains supply.

Sealed by design — and now anti-Legionella

Every ATX is a fully sealed, pressurised system — no open water surface, no overflow and no hygiene management of the kind an open break tank demands. For properties that want the freshest possible water, the new ATX Pure models add a patented Flow-Thru anti-Legionella vessel that continuously recirculates the stored water so it never stagnates — ideal for discerning homeowners, landlords, HMOs, care and hospitality settings.

PURE

Want the freshest water? Ask about the ATX Pure range — the same trusted ATX performance with a Flow-Thru anti-Legionella vessel for total water turnover.

If your mains pressure isn’t up to the job, the WaterBoost ATX range is the solution — sealed, efficient and sized to your home. Choose your model below.