Skip to content

Your cart is empty

Continue shopping

Have an account?

Log in to check out faster.

Your cart

Loading...

Order special instructions

Estimated total

£0.00 GBP

Tax included. Shipping and discounts calculated at checkout.
  • Home Products
    • Electric Fires
    • Gas Fires
    • Hot Water Cylinders
      • Direct
      • Indirect
    • Stoves
  • Plumbing & Heating
    • Bathroom & Kitchen
      • Showers
      • Water Heaters
      • Taps
    • Heating Controls
      • Programmers & Timers
      • Thermostats
      • Radiator Valves
      • Motorised Valves
    • Water Treatment
    • Plumbing Accessories & Tools
  • Cylinder Spares
    • Multiblocs
    • Pressure & Temperature Relief Valves
    • Immersion Heaters & Thermostats
      • Immersion Heaters
      • Immersion Thermostats
    • Expansion Vessels
      • Potable Expansion Vessels
      • Heating Expansion Vessels
    • Pressure Relief
      • Pressure Relief Valves
      • Pressure Relief Cartridges
    • Pressure Reducing
      • Pressure Reducing Valves
      • Pressure Reducing Cartridges
    • Tundish
  • Heating Spares
    • Air Vents
    • Boiler Expansion Vessels
    • Boiler Pressure Relief Valves
    • Gaskets
    • Heat Exchangers
    • Sensors
    • Valve Motors
  • Electrical
    • Electrical Fittings
    • Sockets & Switches
    • Ventilation
Log in
    Arcanu
    • Home Products
      • Electric Fires
      • Gas Fires
      • Hot Water Cylinders
        • Direct
        • Indirect
      • Stoves
    • Plumbing & Heating
      • Bathroom & Kitchen
        • Showers
        • Water Heaters
        • Taps
      • Heating Controls
        • Programmers & Timers
        • Thermostats
        • Radiator Valves
        • Motorised Valves
      • Water Treatment
      • Plumbing Accessories & Tools
    • Cylinder Spares
      • Multiblocs
      • Pressure & Temperature Relief Valves
      • Immersion Heaters & Thermostats
        • Immersion Heaters
        • Immersion Thermostats
      • Expansion Vessels
        • Potable Expansion Vessels
        • Heating Expansion Vessels
      • Pressure Relief
        • Pressure Relief Valves
        • Pressure Relief Cartridges
      • Pressure Reducing
        • Pressure Reducing Valves
        • Pressure Reducing Cartridges
      • Tundish
    • Heating Spares
      • Air Vents
      • Boiler Expansion Vessels
      • Boiler Pressure Relief Valves
      • Gaskets
      • Heat Exchangers
      • Sensors
      • Valve Motors
    • Electrical
      • Electrical Fittings
      • Sockets & Switches
      • Ventilation
    Log in Cart

    SAME WORKING DAY DISPATCH BEFORE 4PM | FREE SHIPPING TO UK MAINLAND

    MULTI-BUY DISCOUNTS AVAILABLE | ENQUIRE HERE

    Filter:

    Availability
    0 selected
    Reset
    Availability
    Price
    The highest price is £194.99 Reset
    £
    £
    Remove all

    19 products

    Filter and sort Filter

    Filter and sort

    Filter

    19 products

    Availability
    Clear
    Price

    The highest price is £194.99

    £
    £
    Clear
    Remove all
    Remove all

    19 products

    • 8 Litre Red Heating Expansion Vessel/ Tank on White Background

      8 Litre Heating Expansion Vessel Suitable Replacement for Zilmet, Eres, Flamco, Varem

      8 Litre Heating Expansion Vessel Suitable Replacement for Zilmet, Eres, Flamco, Varem

      Regular price £26.99
      Regular price Sale price £26.99
      Unit price /  per 
    • 8 Litre Heating Expansion Vessel with Bracket Suitable Replacement for Zilmet, Eres, Flamco, Varem

      8 Litre Heating Expansion Vessel with Bracket Suitable Replacement for Zilmet, Eres, Flamco, Varem

      8 Litre Heating Expansion Vessel with Bracket Suitable Replacement for Zilmet, Eres, Flamco, Varem

      Regular price £29.99
      Regular price Sale price £29.99
      Unit price /  per 
    • 12 Litre Red Heating Expansion Vessel/ Tank on White Background

      12 Litre Heating Expansion Vessel Suitable Replacement for Zilmet, Eres, Flamco, Varem

      12 Litre Heating Expansion Vessel Suitable Replacement for Zilmet, Eres, Flamco, Varem

      Regular price £28.49
      Regular price Sale price £28.49
      Unit price /  per 
    • 12 Litre Heating Expansion Vessel with Bracket Suitable Replacement for Zilmet, Eres, Flamco, Varem

      12 Litre Heating Expansion Vessel with Bracket Suitable Replacement for Zilmet, Eres, Flamco, Varem

      12 Litre Heating Expansion Vessel with Bracket Suitable Replacement for Zilmet, Eres, Flamco, Varem

      Regular price £30.49
      Regular price Sale price £30.49
      Unit price /  per 
    • 18 Litre Red Heating Expansion Vessel/ Tank on White Background

      18 Litre Heating Expansion Vessel Suitable Replacement for Zilmet, Eres, Flamco, Varem

      18 Litre Heating Expansion Vessel Suitable Replacement for Zilmet, Eres, Flamco, Varem

      Regular price £29.99
      Regular price Sale price £29.99
      Unit price /  per 
    • 18 Litre Heating Expansion Vessel with Bracket Suitable Replacement for Zilmet, Eres, Flamco, Varem

      18 Litre Heating Expansion Vessel with Bracket Suitable Replacement for Zilmet, Eres, Flamco, Varem

      18 Litre Heating Expansion Vessel with Bracket Suitable Replacement for Zilmet, Eres, Flamco, Varem

      Regular price £31.99
      Regular price Sale price £31.99
      Unit price /  per 
    • 24 Litre Red Heating Expansion Vessel/ Tank on White Background

      24 Litre Heating Expansion Vessel Suitable Replacement for Zilmet, Eres, Flamco, Varem

      24 Litre Heating Expansion Vessel Suitable Replacement for Zilmet, Eres, Flamco, Varem

      Regular price £34.99
      Regular price Sale price £34.99
      Unit price /  per 
    • 24 Litre Heating Expansion Vessel with Bracket Suitable Replacement for Zilmet, Eres, Flamco, Varem

      24 Litre Heating Expansion Vessel with Bracket Suitable Replacement for Zilmet, Eres, Flamco, Varem

      24 Litre Heating Expansion Vessel with Bracket Suitable Replacement for Zilmet, Eres, Flamco, Varem

      Regular price £36.99
      Regular price Sale price £36.99
      Unit price /  per 
    • Reliance 8 Litre Heating Expansion Vessel XVES100030

      Reliance 8 Litre Heating Expansion Vessel XVES100030

      Reliance 8 Litre Heating Expansion Vessel XVES100030

      Regular price £31.99
      Regular price Sale price £31.99
      Unit price /  per 
    • Reliance 12 Litre Heating Expansion Vessel XVES100040

      Reliance 12 Litre Heating Expansion Vessel XVES100040

      Reliance 12 Litre Heating Expansion Vessel XVES100040

      Regular price £30.99
      Regular price Sale price £30.99
      Unit price /  per 
    • Reliance 18 Litre Heating Expansion Vessel XVES100050

      Reliance 18 Litre Heating Expansion Vessel XVES100050

      Sold out

      Reliance 18 Litre Heating Expansion Vessel XVES100050

      Regular price £38.99
      Regular price Sale price £38.99
      Unit price /  per 
      Sold out
    • Reliance 24 Litre 1.5 Bar Heating Expansion Vessel XVES100060

      Reliance 24 Litre 1.5 Bar Heating Expansion Vessel XVES100060

      Reliance 24 Litre 1.5 Bar Heating Expansion Vessel XVES100060

      Regular price £42.99
      Regular price Sale price £42.99
      Unit price /  per 
    • Reliance 24 Litre 1 Bar Heating Expansion Vessel with Bracket XVES100065

      Reliance 24 Litre 1 Bar Heating Expansion Vessel with Bracket XVES100065

      Reliance 24 Litre 1 Bar Heating Expansion Vessel with Bracket XVES100065

      Regular price £46.99
      Regular price Sale price £46.99
      Unit price /  per 
    • Zilmet Cal-Pro 8 Litre Heating Expansion Vessel 1300000800

      Zilmet Cal-Pro 8 Litre Heating Expansion Vessel 1300000800

      Zilmet Cal-Pro 8 Litre Heating Expansion Vessel 1300000800

      Regular price £26.99
      Regular price Sale price £26.99
      Unit price /  per 
    • Zilmet Cal-Pro 12 Litre Heating Expansion Vessel 1300001200

      Zilmet Cal-Pro 12 Litre Heating Expansion Vessel 1300001200

      Zilmet Cal-Pro 12 Litre Heating Expansion Vessel 1300001200

      Regular price £30.99
      Regular price Sale price £30.99
      Unit price /  per 
    • Zilmet Cal-Pro 18 Litre Heating Expansion Vessel 1300001800

      Zilmet Cal-Pro 18 Litre Heating Expansion Vessel 1300001800

      Zilmet Cal-Pro 18 Litre Heating Expansion Vessel 1300001800

      Regular price £34.99
      Regular price Sale price £34.99
      Unit price /  per 
    • Zilmet Cal-Pro 24 Litre Heating Expansion Vessel 1300002400

      Zilmet Cal-Pro 24 Litre Heating Expansion Vessel 1300002400

      Zilmet Cal-Pro 24 Litre Heating Expansion Vessel 1300002400

      Regular price £38.99
      Regular price Sale price £38.99
      Unit price /  per 
    • Reliance 100 Litre Heating Expansion Vessel XVES100100

      Reliance 100 Litre Heating Expansion Vessel XVES100100

      Sold out

      Reliance 100 Litre Heating Expansion Vessel XVES100100

      Regular price £194.99
      Regular price Sale price £194.99
      Unit price /  per 
      Sold out
    • Aquasystem 5-24 Litre Expansion Vessel Mounting Bracket

      Aquasystem 5-24 Litre Expansion Vessel Mounting Bracket

      Aquasystem 5-24 Litre Expansion Vessel Mounting Bracket

      Regular price £7.99
      Regular price Sale price £7.99
      Unit price /  per 

    Useful Links

    • Home
    • Returns & Refunds
    • Privacy Policy
    • Terms & Conditions
    • About Us
    • Contact Us
    • Multi-Buy Enquiry
    • Reviews

    Contact Information

    Email: support@arcanu.com

    Company Registration Number: 14314488

    VAT Number: 425430521

    Opening Hours: 09:00-17:00, Monday to Friday (Excluding Bank Holidays)

    Payment methods
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Maestro
    • Mastercard
    • PayPal
    • Shop Pay
    • Visa
    © 2025, Arcanu Powered by Shopify
    • Choosing a selection results in a full page refresh.
    • Opens in a new window.
    Free Fast Shipping To All UK Mainland Addresses
    Multi-Buy Discount Email us at support@arcanu.com