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
  • 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
    • 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

    Filter:

    Availability
    0 selected
    Reset
    Availability
    Price
    The highest price is £920.69 Reset
    £
    £
    Remove all

    364 products

    Filter and sort Filter

    Filter and sort

    Filter

    364 products

    Availability
    Clear
    Price

    The highest price is £920.69

    £
    £
    Clear
    Remove all
    Remove all

    364 products

    • Reliance 1 Piece 2/6 Bar 22mm Multibloc Control Valve CWIC355040

      Reliance 1 Piece 2/6 Bar 22mm Multibloc Control Valve CWIC355040

      Reliance 1 Piece 2/6 Bar 22mm Multibloc Control Valve CWIC355040

      Regular price £94.99
      Regular price Sale price £94.99
      Unit price /  per 
    • Reliance 1 Piece 3/4.5 Bar 22mm Multibloc Control Valve CWIC355035

      Reliance 1 Piece 3/4.5 Bar 22mm Multibloc Control Valve CWIC355035

      Reliance 1 Piece 3/4.5 Bar 22mm Multibloc Control Valve CWIC355035

      Regular price £56.99
      Regular price Sale price £56.99
      Unit price /  per 
    • Reliance 1 Piece 3/5 Bar 22mm Multibloc Control Valve CWIC355060

      Reliance 1 Piece 3/5 Bar 22mm Multibloc Control Valve CWIC355060

      Reliance 1 Piece 3/5 Bar 22mm Multibloc Control Valve CWIC355060

      Regular price £55.99
      Regular price Sale price £55.99
      Unit price /  per 
    • Reliance 1 Piece 3/6 Bar 22mm Multibloc Control Valve CWIC200001

      Reliance 1 Piece 3/6 Bar 22mm Multibloc Control Valve CWIC200001

      Reliance 1 Piece 3/6 Bar 22mm Multibloc Control Valve CWIC200001

      Regular price £38.99
      Regular price Sale price £38.99
      Unit price /  per 
    • Reliance 1 Piece 3/6 Bar 22mm Multibloc Control Valve CWIC355030

      Reliance 1 Piece 3/6 Bar 22mm Multibloc Control Valve CWIC355030

      Reliance 1 Piece 3/6 Bar 22mm Multibloc Control Valve CWIC355030

      Regular price £56.99
      Regular price Sale price £56.99
      Unit price /  per 
    • Reliance 1 Piece 3/8 Bar 22mm Multibloc Control Valve CWIC110005

      Reliance 1 Piece 3/8 Bar 22mm Multibloc Control Valve CWIC110005

      Reliance 1 Piece 3/8 Bar 22mm Multibloc Control Valve CWIC110005

      Regular price £72.99
      Regular price Sale price £72.99
      Unit price /  per 
    • Reliance 1 Piece 3/8 Bar 22mm Multibloc Control Valve CWIC355065

      Reliance 1 Piece 3/8 Bar 22mm Multibloc Control Valve CWIC355065

      Reliance 1 Piece 3/8 Bar 22mm Multibloc Control Valve CWIC355065

      Regular price £57.49
      Regular price Sale price £57.49
      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 £29.99
      Regular price Sale price £29.99
      Unit price /  per 
    • Reliance 15mm x 22mm Plastic Tundish TUND219005

      Reliance 15mm x 22mm Plastic Tundish TUND219005

      Reliance 15mm x 22mm Plastic Tundish TUND219005

      Regular price £8.99
      Regular price Sale price £8.99
      Unit price /  per 
    • Reliance 18 Litre Heating Expansion Vessel XVES100050

      Reliance 18 Litre Heating Expansion Vessel XVES100050

      Reliance 18 Litre Heating Expansion Vessel XVES100050

      Regular price £38.99
      Regular price Sale price £38.99
      Unit price /  per 
    • Reliance 1M 3/4" Expansion Vessel Hose HOSE202106

      Reliance 1M 3/4" Expansion Vessel Hose HOSE202106

      Reliance 1M 3/4" Expansion Vessel Hose HOSE202106

      Regular price £11.49
      Regular price Sale price £11.49
      Unit price /  per 
    • Reliance 2 Piece 3.5/6 Bar 22mm Multibloc Control Valve COLK351205

      Reliance 2 Piece 3.5/6 Bar 22mm Multibloc Control Valve COLK351205

      Reliance 2 Piece 3.5/6 Bar 22mm Multibloc Control Valve COLK351205

      Regular price £104.99
      Regular price Sale price £104.99
      Unit price /  per 
    • Reliance 2116 2 Bar Pressure Relief Cartridge ZRC209020

      Reliance 2116 2 Bar Pressure Relief Cartridge ZRC209020

      Sold out

      Reliance 2116 2 Bar Pressure Relief Cartridge ZRC209020

      Regular price £12.99
      Regular price Sale price £12.99
      Unit price /  per 
      Sold out
    • Reliance 2116 2.5 Bar Pressure Relief Cartridge ZRC209021

      Reliance 2116 2.5 Bar Pressure Relief Cartridge ZRC209021

      Sold out

      Reliance 2116 2.5 Bar Pressure Relief Cartridge ZRC209021

      Regular price £12.99
      Regular price Sale price £12.99
      Unit price /  per 
      Sold out
    • Reliance 2116 3 Bar Pressure Relief Cartridge ZRC209005

      Reliance 2116 3 Bar Pressure Relief Cartridge ZRC209005

      Reliance 2116 3 Bar Pressure Relief Cartridge ZRC209005

      Regular price £12.99
      Regular price Sale price £12.99
      Unit price /  per 
    • Reliance 2116 3 Bar Pressure Relief Cartridge ZRC214043

      Reliance 2116 3 Bar Pressure Relief Cartridge ZRC214043

      Reliance 2116 3 Bar Pressure Relief Cartridge ZRC214043

      Regular price £12.99
      Regular price Sale price £12.99
      Unit price /  per 
    • Reliance 2116 3.5 Bar Pressure Relief Cartridge ZRC214031

      Reliance 2116 3.5 Bar Pressure Relief Cartridge ZRC214031

      Reliance 2116 3.5 Bar Pressure Relief Cartridge ZRC214031

      Regular price £12.99
      Regular price Sale price £12.99
      Unit price /  per 
    • Reliance 2116 4 Bar Pressure Relief Cartridge ZRC214046

      Reliance 2116 4 Bar Pressure Relief Cartridge ZRC214046

      Reliance 2116 4 Bar Pressure Relief Cartridge ZRC214046

      Regular price £12.99
      Regular price Sale price £12.99
      Unit price /  per 
    • Reliance 2116 5 Bar Pressure Relief Cartridge ZRC214048

      Reliance 2116 5 Bar Pressure Relief Cartridge ZRC214048

      Reliance 2116 5 Bar Pressure Relief Cartridge ZRC214048

      Regular price £12.99
      Regular price Sale price £12.99
      Unit price /  per 
    • Reliance 2116 6 Bar Pressure Relief Cartridge ZRC214004

      Reliance 2116 6 Bar Pressure Relief Cartridge ZRC214004

      Reliance 2116 6 Bar Pressure Relief Cartridge ZRC214004

      Regular price £12.99
      Regular price Sale price £12.99
      Unit price /  per 
    • 1
    • …
    • 12
    • 13
    • 14
    • 15
    • 16
    • …
    • 19

    Useful Links

    • Home
    • Returns & Refunds
    • Privacy Policy
    • Terms & Conditions
    • About Us
    • Contact Us
    • Christmas Opening Hours

    Contact Information

    Email: support@arcanu.com

    Company Registration Number: 14314488

    VAT Number: 425430521

    Payment methods
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Maestro
    • Mastercard
    • PayPal
    • Shop Pay
    • Visa
    © 2024, 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
    Easy Returns Return with Ease
    Multi-Buy Discount Email us at support@arcanu.com