686 products

  • Bostik 750g Plumbers Mait 30812666

    Bostik 750g Plumbers Mait 30812666

    £12.99
    £12.99
    Price excluding VAT: £10.83

    Description Evo-STIK Plumber's Mait is an excellent waterproof putty designed for use with spigot and socket joints in sanitary fittings. It is perfect for securing sinks...
  • Brass 1/2" Hose Union Bibtap 301308

    Brass 1/2" Hose Union Bibtap 301308

    £35.99
    £35.99
    Price excluding VAT: £29.99

    Description The Brass 1/2" Hose Union Bibtap 301308 is an outdoor tap designed to facilitate the connection of a garden hose to a water supply. A...
  • Brass Air Vent Cap 15mm

    Brass Air Vent Cap 15mm

    £7.99
    £7.99
    Price excluding VAT: £6.66

    If you are interested in purchasing in bulk please get in touch with us at support@arcanu.com or fill out an enquiry form here.
  • Altecnic Caleffi 1 Piece 3/8 Bar 22mm Copper Connection Circlip Multibloc
    Altecnic Caleffi 1 Piece 3/8 Bar 22mm Copper Connection Circlip Multibloc

    Caleffi 1 Piece 3/8 Bar 22mm Circlip Multibloc 533118CST

    £64.99
    £64.99
    Price excluding VAT: £54.16

    Designed with control in mind the Caleffi 3/8 Bar Multibloc regulates the mains inlet pressure to your unvented hot water system ensuring safe & efficient operation. ...
  • Caleffi 1/2" x 3/4" Angled Plastic Tundish on white background
    Caleffi 1/2" x 3/4" Angled Plastic Tundish on white background
    Sold out

    Caleffi 1/2" x 3/4" Angled Plastic Tundish AP-400001

    £10.49
    £10.49
    Price excluding VAT: £8.74

    Essential for preserving plumbing systems, the Caleffi Angled Tundish features an air gap where water flow indicates a potential system fault In a plumbing system, water...
  • Caleffi 1/4" Robocal Automatic Air Vent 502420

    Caleffi 1/4" Robocal Automatic Air Vent 502420

    £14.99
    £14.99
    Price excluding VAT: £12.49

    Specifically designed to eliminate trapped air in plumbing and heating systems, the Caleffi Robocal Air Vent boosts system efficiency and prevents corrosion With its automatic operation,...
  • The Caleffi 10 Bar 1/2 inch Pressure & Temperature Relief Valve with a red top, brass body, and white probe on white background
    The Caleffi 10 Bar 1/2 inch Pressure & Temperature Relief Valve with a red top, brass body, and white probe on white background

    Caleffi 10 Bar 1/2" Pressure & Temperature Relief Valve 309400CST

    £28.49
    £28.49
    Price excluding VAT: £23.74

    Activating when internal pressure or temperature exceeds safe limits, the Caleffi 10 Bar Pressure & Temperature Relief Valve prevents over-pressurisation and potential system damage The Caleffi...
  • Caleffi 12 Litre Buffer Vessel 569012

    Caleffi 12 Litre Buffer Vessel 569012

    £259.99
    £259.99
    Price excluding VAT: £216.66

    Specification Capacity 12 Litre Connection 1" Maximum Operating Temperature -10 to 95°C Maximum Operating Pressure 4 Bar MPN 569012 If you are interested in purchasing in...
  • Caleffi 22mm Adjustable Pressure Reducing Valve with brass body, grey adjustment knob, and gold connectors for secure plumbing Ask ChatGPT
    Caleffi 22mm Adjustable Pressure Reducing Valve with brass body, grey adjustment knob, and gold connectors for secure plumbing Ask ChatGPT
    Sold out

    Caleffi 22mm Adjustable Pressure Reducing Valve 535022

    £68.99
    £68.99
    Price excluding VAT: £57.49

    Designed to reduce high inlet pressure to a lower, controlled pressure, the Caleffi Pressure Reducing Valve ensures consistent and stable water pressure within unvented hot water...
  • Caleffi 25 Litre Buffer Vessel 569025

    Caleffi 25 Litre Buffer Vessel 569025

    £309.99
    £309.99
    Price excluding VAT: £258.33

    Specification Capacity 25 Litre Connection 1" Maximum Operating Temperature -10 to 95°C Maximum Operating Pressure 4 Bar MPN 569025 If you are interested in purchasing in...
  • Caleffi 3.5/6 Bar 22mm Multibloc Inlet Control Group

    Caleffi 3.5/6 Bar 22mm Multibloc Inlet Control Group

    £69.99
    £69.99
    Price excluding VAT: £58.33

    Designed with control in mind the Caleffi 3.5/6 Bar 22mm Multibloc regulates the mains inlet pressure to your unvented hot water system ensuring safe & efficient...
  • Caleffi 3/6 Bar Circlip Multibloc for unvented systems on a white background
    Caleffi 3/6 Bar Circlip Multibloc for unvented systems on a white background

    Caleffi 3/6 Bar 22mm Circlip Multibloc 533112CST

    £48.99
    £48.99
    Price excluding VAT: £40.83

    Designed with precise control in mind, the Caleffi 3/6 Bar Multibloc regulates mains inlet pressure to unvented hot water systems, ensuring safe and efficient operation The...
  • Caleffi branded 3 Bar reducing, 6 Bar relief, 22mm connection with brass cold water inlet loose nut multibloc valve with a grey nut and a red check valve
    Caleffi branded 3 Bar reducing, 6 Bar relief, 22mm connection with brass cold water inlet loose nut multibloc valve with a grey nut and a red check valve

    Caleffi 3/6 Bar 22mm Cold Water Inlet Loose Nut Multibloc Valve 533002CST

    £48.99
    £48.99
    Price excluding VAT: £40.83

    Designed specifically for unvented systems, the Caleffi 3/6 Bar Loose Nut Multibloc regulates the mains water supply pressure entering the hot water cylinder ensuring safe operation...
  • Caleffi 3/6 Bar 22mm O-Ring Type Multibloc 535001CST

    Caleffi 3/6 Bar 22mm O-Ring Type Multibloc 535001CST

    £64.99
    £64.99
    Price excluding VAT: £54.16

    Description A Multibloc is a valve designed for unvented systems and regulates mains water supply pressure to the cylinder. The Caleffi 3/6 Bar O-Ring Type Multibloc...
  • A Caleffi 3 Bar Pressure Relief Valve with a red cap and brass body with a 3/4" MBSP connection
    A Caleffi 3 Bar Pressure Relief Valve with a red cap and brass body with a 3/4" MBSP connection

    Caleffi 311 Series 3 Bar 3/4" Pressure Relief Valve 311530

    £18.49
    £18.49
    Price excluding VAT: £15.41

    The Caleffi 3 Bar Pressure Relief Valve automatically releases excess pressure when it exceeds the 3 Bar limit, ensuring safe operation and protecting unvented plumbing and...
  • Caleffi 311 Series 6 Bar 3/4" Pressure Relief Valve 311560

    Caleffi 311 Series 6 Bar 3/4" Pressure Relief Valve 311560

    £18.29
    £18.29
    Price excluding VAT: £15.24

    Ensure reliable and safe operation of heating and hot water systems by preventing excessive pressure with the Caleffi 311 Series 6 Bar Pressure Relief Valve. A Pressure...
  • Caleffi 312 Series 3 Bar Pressure Relief Valve 312430

    Caleffi 312 Series 3 Bar Pressure Relief Valve 312430

    £8.99
    £8.99
    Price excluding VAT: £7.49

    Description A Pressure Relief Valve is designed for unvented systems and serves to protect against potential overpressure. The primary purpose of the Caleffi 3 Bar Pressure...
  • Caleffi 313 Series 3 Bar 1/2" Pressure Relief Valve 313430

    Caleffi 313 Series 3 Bar 1/2" Pressure Relief Valve 313430

    £11.99
    £11.99
    Price excluding VAT: £9.99

    A Pressure Relief Valve is designed for unvented systems and serves to protect against potential overpressure. The primary purpose of the Caleffi 313 Series 3 Bar...
  • Caleffi 313 Series 3 Bar Pressure Relief Valve with a gauge, featuring a red top and a black dial on the gauge.
    Caleffi 313 Series 3 Bar Pressure Relief Valve with a gauge, featuring a red top and a black dial on the gauge.
    Sold out

    Caleffi 313 Series 3 Bar 1/2" Pressure Relief Valve with Gauge 313430

    £19.99
    £19.99
    Price excluding VAT: £16.66

    The Caleffi Pressure Relief Valve is designed for unvented systems to protect against overpressure and maintain safe operating conditions in plumbing and heating systems The Caleffi...
  • Caleffi 314 Series 3 Bar 3/4" Pressure Relief Valve with Gauge Port A314437CST
    Caleffi 314 Series 3 Bar 3/4" Pressure Relief Valve with Gauge Port A314437CST

    Caleffi 314 Series 3 Bar 3/4" Pressure Relief Valve with Gauge Port A314437CST

    £12.99
    £12.99
    Price excluding VAT: £10.83

    Designed for unvented systems, the Caleffi 312 Series 3 Bar 3/4" Pressure Relief Valve with Gauge Port serves to protect against potential overpressure.  The primary purpose...
  • Caleffi 6 Bar 15mm O-Ring Pressure Relief Valve features a compact brass body with a durable O-ring seal, a 15mm threaded connection
    Caleffi 6 Bar 15mm O-Ring Pressure Relief Valve features a compact brass body with a durable O-ring seal, a 15mm threaded connection

    Caleffi 6 Bar 15mm O-Ring Type Pressure Relief Valve 312007CST

    £14.99
    £14.99
    Price excluding VAT: £12.49

    Activating when system pressure exceeds 6 Bar, the Caleffi O-Ring Pressure Relief Valve releases excess pressure to protect the system from damage and over-pressurisation The Caleffi...
  • The Caleffi 6 Bar Circlip Pressure Relief Valve (F0000412) with a brass body, red cap and a circlip connection for reliable 15mm installations.
    The Caleffi 6 Bar Circlip Pressure Relief Valve (F0000412) with a brass body, red cap and a circlip connection for reliable 15mm installations.

    Caleffi 6 Bar Circlip Pressure Relief Valve F0000412

    £24.49
    £24.49
    Price excluding VAT: £20.41

    Designed for unvented system, the Caleffi 6 Bar Pressure Relief Valve prevents over-pressurisation and safeguards critical system components When the pressure exceeds 6 Bar, the Caleffi...
  • Caleffi 6 Bar Loose Nut Pressure Relief Valve 311501

    Caleffi 6 Bar Loose Nut Pressure Relief Valve 311501

    £22.99
    £22.99
    Price excluding VAT: £19.16

    Activating when system pressure exceeds safe levels and automatically deactivating when pressure stabilises, the Caleffi 6 Bar Loose Nut Pressure Relief Valve offers reliable protection against...
  • Caleffi 7 Bar 1/2" Pressure & Temperature Relief Valve 309470CST

    Caleffi 7 Bar 1/2" Pressure & Temperature Relief Valve 309470CST

    £17.99
    £17.99
    Price excluding VAT: £14.99

    Designed to protect against over-pressurisation, the Caleffi 7 Bar Pressure & Temperature Relief Valve is an essential safety feature installed near the top of the hot...