John Guest

John Guest is a leading manufacturer of high-quality push-fit fittings, pipe, and plastic plumbing systems, renowned for their reliability and ease of use. Catering to a wide range of industries, including plumbing, heating, automotive, and drinks dispensing, John Guest products are designed to deliver exceptional performance and convenience.

673 products


  • John Guest Speedfit 12mm X 1/2" Female Adaptor BSP - CM451214FS

    John Guest Speedfit John Guest Speedfit 12mm X 1/2" Female Adaptor BSP - CM451214FS

    John Guest push-fit acetal female adaptor (BSP thread) fitting connects metric sized pipework to a BSP type fitting. Fast and simple to install, John Guest push-fit fittings create an instant push-fit connection and leak tight seal without the need for tools, hot works or sealing agents. The unique collet locking design firmly and securely holds the pipe in place without deforming the pipe or restricting flow. Fittings are corrosion resistant and fully demountable, improving system performance and reducing system downtime during maintenance. Manufactured in acetal copolymer, the fitting is suitable for water, potable liquids and intermittent hot water applications (up to 65°C max). All John Guest fittings are manufactured and assembled in the UK. Rigid and hardwearing acetal copolymer material with an EDPM O-Ring Suitable for potable liquids and intermittent hot water applications up to 65°C max (not suitable for air, pneumatic or vacuum applications) Instant push-fit connection and leak tight seal Connect, disconnect and reconnect in seconds without tools No scale build up improves performance and equipment lifespan Superior flow characteristics Compatible with LLDPE or soft metal pipe/tubing

    £5.99

  • John Guest Speedfit 12mm Union Connector - Pm0412E

    John Guest Speedfit John Guest Speedfit 12mm Union Connector - Pm0412E

    John Guest straight connector push-fit fitting connects two equally sized pipes. Fast and simple to install, John Guest Air and Pneumatics creates an instant connection and airtight seal without the need for tools, hot works or sealing agents. Air piping systems can be set up and installed 50% quicker than traditional methods. The unique collet locking design firmly and securely holds the pipe in place without deforming the pipe or restricting flow. Fittings are also fully demountable, reducing system downtime during maintenance and making it quick and easy to modify or extend systems. Designed in tough engineered plastic, fittings are compatible with John Guest nylon, powder coated aluminium or LLDPE tubing, as well as copper, PEXa and other soft metal pipe materials. All John Guest fittings are manufactured and assembled in the UK. Strong acetal copolymer fitting with nitrile O-Ring Airtight connection with superior flow characteristics Instant push-fit connection and demountable without tools Secure collet cover prevents accidental disconnection Suitable for air and pneumatics piping systems up to 10 bar Ideal for air, inert gases and vacuum applications Food grade fitting suitable for potable liquids Compatible with soft metal or plastic pipe/tubing

    £4.99

  • John Guest Speedfit Underfloor Heatinga 240V Actuator Valve

    John Guest Speedfit John Guest Speedfit Underfloor Heatinga 240V Actuator Valve

    JG Underfloor 240v Actuator Valve opens or closes the flow of water to an individual underfloor heating (UFH) circuit on the manifold and is controlled by a thermostat or programmer. It also allows for independent pipe loop control via the thermostat when wired to a JG Aura wiring centre. 240v circuit actuator valve Suitable for underfloor heating applications only

    £45.99

  • John Guest Speedfit Underfloor Heating Tile Floor Panels (Pack Of 12)

    John Guest Speedfit John Guest Speedfit Underfloor Heating Tile Floor Panels (Pack Of 12)

    Out of stock

    JG Underfloor Floor Panel is an underfloor heating (UFH) pipe fixing system provides high heat output and response. Suitable for 15mm pipe, it uses a simple grid system to ensure precise layout to enable minimum pipe bending radius. Ideal for new builds and extensions with a screed floor construction, especially ground floor levels. Fast and simple to install, it comes with a 11mm layer of insulation along with additional thermal insulation. Screed pipe fixing system Simple castellated grid system for precise pipe layout Enables minimum pipe bending radius 11mm layer of insulation and additional thermal insulation High heat output and response Ideal for larger regular shaped rooms Suitable for underfloor heating applications only

    Out of stock

    £202.49

  • John Guest Speedfit Release Aid 15mm (Pack Of 10)

    John Guest Speedfit John Guest Speedfit Release Aid 15mm (Pack Of 10)

    JG Speedfit release aid allows a firmer grip on the collet when removing pipes. Designed, manufactured and assembled in the UK. Provides a firmer grip on the collet demounting pipe For use with Speedfit fittings

    £8.49

  • John Guest Speedfit Plastic Lever Valve 22mm (22Sv-H)

    John Guest Speedfit John Guest Speedfit Plastic Lever Valve 22mm (22Sv-H)

    10 in stock

    The JG Speedfit ball valve enables the flow of water to a fixture or appliance to be isolated in the event of an emergency or for maintenance work using an easy to operate ¼ turn handle. Simply push the valve fully onto the pipe. To demount the connection, push the collet towards the body of the push-fit fitting and pull the pipe release. The JG Speedfit ball valve is up to 40% faster to install than traditional methods and is easier to use in confined spaces by removing the need for hot works and tools. Designed, manufactured and assembled in the UK. Instant push-fit service valve with integrated isolation handle Red and blue indices for easy identification of water supply Install and demount in seconds without tools Safe flame-free installation, with no hot works, glue or flux Grip & Seal collet with stainless steel teeth and main O-Ring seal Compatible with Speedfit PEX and polybutylene plastic pipe (inserts required) and copper pipe Suitable for hot and cold water (not suitable for central heating)

    10 in stock

    £20.99

  • John Guest Speedfit White Plastic Service Valve 15mm X 1/2" (Pack Of 5)

    John Guest Speedfit John Guest Speedfit White Plastic Service Valve 15mm X 1/2" (Pack Of 5)

    JG Speedfit straight service valve with tap connector for the connection of plastic and copper pipe. Using an integrated handle, the valve allows for isolation of fixtures (taps, bath taps and WCs) and appliances (washing machines and dishwashers) for maintenance or installation. To connect simply push the JG Speedfit service valve with tap connector fully onto the pipe and screw up to the fixture to the threaded connection. To demount the connection, pull the collet towards the body of the push-fit fitting and pull the pipe to release. Designed, manufactured and assembled in the UK. Push-fit service valve and hand-tighten tap connector Integrated ¼ turn handle instantly isolates water Safe flame-free installation, with no hot works, glue or flux Grip & Seal collet with stainless steel teeth and main O-Ring seal Compatible with Speedfit PEX and polybutylene plastic pipe (inserts required) and copper pipe Suitable for hot and cold water (not suitable for central heating)

    £71.49

  • John Guest Speedfit Converter 15mm X 1/2" Imperial (Pack Of 5) NC471

    John Guest Speedfit John Guest Speedfit Converter 15mm X 1/2" Imperial (Pack Of 5) NC471

    JG Speedfit conversion connector push-fit fitting that enables imperial and metric pipes to be connected by converting the pipe size from metric to imperial. Designed, manufactured and assembled in the UK. Instant push-fit connection Install and demount in seconds without tools Safe flame-free installation, with no hot works, glue or flux Grip & Seal collet with stainless steel teeth and main O-Ring seal Non-toxic, resists corrosion and no scale build-up Compatible with Speedfit PEX and polybutylene plastic pipe (inserts required) and copper pipe Suitable for hot and cold water only (not suitable for central heating systems)

    £20.49

  • John Guest Speedfit Stem Elbow 15mm (Pack Of 10)

    John Guest Speedfit John Guest Speedfit Stem Elbow 15mm (Pack Of 10)

    JG Speedfit stem elbow push-fit fitting for the connection of two equal sized Speedfit push-fit fittings to create a 90° swivel type connection. The stem elbow allows a 90° male to female connection making it an ideal coupler for appliances such as cold water storage tanks. Simply push the push-fit fitting fully onto the pipe and twist the plastic nut clockwise to lock in place. To demount the connection, unlock the nut by hand and push the collet towards the body of the push-fit fitting and pull the pipe to release. The JG Speedfit stem elbow push-fit fitting is up to 40% faster to install than traditional methods and is easier to use in confined spaces by removing the need for hot works and tools. Designed, manufactured and assembled in the UK. Instant push-fit connection Install and demount in seconds without tools Safe flame-free installation, with no hot works, glue or flux Grip & Seal collet with stainless steel teeth and main O-Ring seal Twist & Lock mechanism secures fitting and adds compression Non-toxic, resists corrosion and no scale build-up Compatible with Speedfit PEX and polybutylene plastic pipe (inserts required) and copper pipe Suitable for hot and cold water and central heating systems

    £54.99

  • John Guest Speedfit 12mm Shut Off Valve - PPMSV041212W (Pack of 5)

    John Guest Speedfit John Guest Speedfit 12mm Shut Off Valve - PPMSV041212W (Pack of 5)

    John Guest push-fit polypropylene Speedfit to Speedfit push-fit shut off valve isolates supply to a fixture or appliance. Fast and simple to install, John Guest valves create an instant push-fit connection and leak tight seal without the need for tools, hot works or sealing agents. The unique collet locking design firmly and securely holds the pipe in place without deforming the pipe or restricting flow. John Guest push-fit valves are corrosion resistant and fully demountable, improving system performance and reducing system downtime during maintenance. Manufactured in polypropylene with an EDPM O-Ring, the valve offers greater chemical resistance than the push-fit acetal valve and is suitable for potable water (10 bar at 20°C), intermittent hot water (4 bar at 60°C), water treatment and purification applications. All John Guest fittings are manufactured and assembled in the UK. Durable polypropylene shut off valve with EDPM O-Ring offers high chemical resistance Integral 1/4 turn isolation valve Instant push-fit connection and leak tight seal Connect, disconnect and reconnect in seconds without tools No scale build up improves performance and equipment lifespan Superior flow characteristics Suitable for potable liquid, intermittent hot water, water treatment and purification applications. Not suitable for compressed air, vacuum, explosive gases, petroleum spirit or other fuel or heating systems. Compatible with LLDPE or soft metal pipe/tubingPack of 5

    £21.49

  • John Guest Speedfit Under Floor Heating Service Kit For JG/CONTROL4 MVKIT03

    John Guest Speedfit John Guest Speedfit Under Floor Heating Service Kit For JG/CONTROL4 MVKIT03

    Out of stock

    Full internal service kit for the JG/Control4 and JG Control/5 mixing valve JG Underfloor internal service kit for JGControl/4 & JG/Control 5. Includes replacement thermostat, spring and lubricant for the UFH mixing valve, as well as replacement seals for the mixer's brass temperature adjustment. Features and benefits Includes a replacement thermostatic element, spring and lubricant All mixing valve seals included

    Out of stock

    £42.49

  • John Guest Speedfit 1/2" Thread Washer (Pack of 20) 1/2 EPW

    John Guest Speedfit John Guest Speedfit 1/2" Thread Washer (Pack of 20) 1/2 EPW

    Durable replacement thread seal for Speedfit tap connectors and FBSP fittings JG Speedfit thread washer is for use with female couplers or tap connectors. Designed, manufactured and assembled in the UK. Features and benefits Replacement thread seal for Speedfit tap connectors and FBSP fittings Suitable for cold and hot water and central heating

    £13.99

John Guest

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