• Friendly Staff On hand to help
  • Expert Knowledge 50 years of industry experience
  • Extensive Range Thousands of products in stock
  • Independent Business Proud member of The IPG

    • Plumbing Water Tanks Potable Vessels Reliance RWC - 18 Litre Aquasystem AR18 Potable Expansion Vessel - XVES050050

    Reliance RWC - 18 Litre Aquasystem AR18 Potable Expansion Vessel - XVES050050

    520-147-0183

    £49.18 inc. VAT

    £40.98 ex. VAT

      Typically available in 2-3 working days

    • The Reliance RWC Aquasystem AR18 is a premium, 18-litre potable expansion vessel designed to safely absorb thermal expansion in unvented hot water systems. Built with a high-durability, white epoxy-coated steel body, it features an advanced replaceable membrane that completely separates the water from the air chamber. This design prevents internal corrosion, pressure loss, and water contamination. The vessel is engineered with an extra-wide membrane opening and a robust, bolted stainless steel flange to eliminate flow noise, making it an ideal choice for quiet domestic and light commercial installations.

      • Replaceable membrane
      • Stainless steel bolted flange prevents corrosion
      • White Epoxy Coated Steel Container
      • Extra-wide membrane opening prevents noise caused by restricted flow
      Brand
      Reliance Water Controls
      Guarantee
      5 Years
      Category
      Expansion Vessel - Potable
      Product Code
      520-147-0183
      Size
      18 Litres
      Main Material
      Steel
      Main Colour
      White
      Box Quantity
      1
      Weight
      2895 g
      Width
      280 mm
      Height
      430 mm
      Diameter
      280 mm
      Max Pressure
      10 Bar
      GTIN
      0708747442090

    • Collect in-store

      Collection is available between 7:30am and 5pm Monday - Friday, and between 8am and midday on Saturdays.

      Please wait for us to contact you before making your way to collect your items. Items must be inspected on collection.

      Please ensure to bring your order confirmation with you on collection.

      Estimated collection Thursday 25th.

    • Our delivery policy

      We will deliver goods as soon as we can. An estimated delivery date will be provided on the checkout pages. For stock items, this may be as soon as the next day, for out-of-stock items it may take a few days longer.

      Local deliveries apply to Oldham (OL), Bolton (BL), Manchester (M), Stockport (SK) and Blackburn (BB) postcode areas, with free delivery for orders above £500.

      Courier deliveries are available to the rest of the UK excluding Northern Ireland, the Channel Islands, the Isle of Man, the Isle of Wight and the Scottish Highlands. Free standard delivery for orders above £500 (for some larger products an additional delivery surcharge may apply).

      See our 'Terms of Sale' for more information on our delivery policy.

      Order before 2.00pm for estimated delivery between Friday 26th and Tuesday 30th.

    • Our returns policy

      Please see our Terms of Sale for our full returns policy.

    You might also like…