John Guest

What John Guest does

John Guest, founded in 1961 and headquartered in West Drayton, United Kingdom, is a manufacturer of plastic push-to-connect fittings, valves, tubing, and pipe connection systems serving original equipment manufacturers (OEMs), distributors, and end-users across more than eight vertical end markets. The company's core technology is its patented push-fit connector platform, with proprietary sub-technologies including SuperSeal (integrally molded stainless steel teeth with double o-ring seals for stainless steel tubing), ProLock (copper tube size fittings for plumbing), and Speedfit Twist & Lock (quarter-turn grip-then-seal construction). Its product portfolio spans OD tube fittings (5/32 to 1/2 inch) in polypropylene and acetal variants, CTS fittings and valves (3/8 to 1 inch), LLDPE tubing, and installation kits, plus market-specific lines such as JG Speedfit (plumbing/heating), JG Underfloor (low-profile underfloor heating), JG PolarClean (drinks dispense and water treatment), JG Compressed Air, JG Telecoms microduct connectors, JG Automotive, Agriculture, Cooling, Marine, and Leisure Vehicles. The company holds four registered trademarks (John Guest®, Speedfit®, SuperSeal®, ProLock®) and operates 1,001–5,000 employees globally.

The business is operated as an OEM-embedded model, developing custom and standard fittings and half cartridges in partnership with manufacturers in water treatment and filtration, beverage dispensing (beer, coffee, vending), plumbing and heating, compressed air and pneumatics, automotive, telecommunications, agriculture, marine, cooling, and leisure vehicles. Distribution is omnichannel: direct OEM relationships globally, an authorized distributor and wholesale network, dedicated direct sales support teams in the US (Charlotte) and Canada, and a retail channel in Australia for caravan, motorhome, and pure water consumer products. The geographic footprint spans 13 countries with dedicated localized websites and sales offices across the Americas (US, Canada), EMEA (UK, Ireland, Germany, France, Italy, Spain, Poland, Czech Republic, Netherlands), and Asia-Pacific (Australia, China with a Shanghai office). Pricing is quote-based and not publicly disclosed.

John Guest is a brand within Reliance Worldwide Corporation Limited (RWC), an Australian publicly listed company on the ASX (ticker: RWC) that also owns SharkBite, HoldRite, CashAcme, Eastman, and EZ-Flo, providing shared corporate services, cross-brand distribution, and a global water movement and control platform. The company self-describes as the world's leading OEM supplier in plastic push-to-connect fittings and serves multi-decade customer relationships, exemplified by a 25-year OEM relationship with Chester Paul Company in water treatment. Revenue is not separately disclosed at the John Guest brand level, and the company has no public funding history as it is a subsidiary of the publicly listed parent.

Name

John Guest

Legal name

Reliance Worldwide Corporation Limited

Website

https://johnguest.com

Company type

Private

Founded year

1961

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

John Guest is a 60-year-old UK-founded manufacturer of plastic push-to-connect fittings, valves, and tubing serving OEMs and distributors globally across water treatment, beverage dispense, plumbing, automotive, telecoms, and industrial fluid handling markets, operating as a brand within ASX-listed Reliance Worldwide Corporation.

Ownership category

akta.pro rank

Product category

Push-Fit Plumbing Fittings

NAICS

Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing (32612), Fluid Power Valve and Hose Fitting Manufacturing (332912)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Special Industry Machinery (No Metalworking Machinery) (3550)

akta.pro primary industry

Plumbing & Building Drain/Waste/Vent (DWV) Pipe & Fittings (IMANADAG)

akta.pro secondary industries

Hoses, Tubing & Fittings (Hydraulic/Pneumatic Lines & Connectors) (IMAHAGAH), Ventilation, Ducting & Air Distribution Equipment (IMAHAKAG)

Keywords

• Push-fit fittings
• Plastic plumbing systems
• OEM connectors
• Pipe connection systems
• Fluid control products

Headquarters

HQ city

West Drayton

HQ country

United Kingdom

HQ region

Europe

Offices13 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Product Sales: John Guest generates revenue through the sale of plastic push-fit fittings, valves, tubing, and pipe connection products to OEMs, distributors, and end-users across multiple industries including water filtration, beverage dispensing, plumbing, heating, compressed air, telecoms, automotive, and agriculture.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels8 records

Core offering

John Guest manufactures and supplies plastic push-to-connect fittings, valves, tubing, and pipe connection systems for OEM manufacturers and trade customers across water treatment, beverage dispensing, plumbing, heating, compressed air, automotive, telecoms, agriculture, and marine applications. The company develops standard and custom OEM solutions including half cartridges in partnership with manufacturers from diverse industry sectors, leveraging proprietary push-fit, SuperSeal, ProLock, and Speedfit Twist & Lock technologies.

Product overview

John Guest is the world's leading OEM supplier in plastic push-to-connect fittings, tubing, pipe connections, and fluid control products. The product portfolio is organized by market application and includes: OD Tube Fittings and RO Tube Connectors (5/32 to 1/2 inch) available in Polypropylene White/Black and Acetal Gray/White/SuperSeal variants; CTS Fittings and Valves (3/8 to 1 inch) including ProLock and Speedfit Twist & Lock technologies; LLDPE Tubing; Installation Kits; and OEM Solutions featuring half cartridges. In the UK/European market, the offering expands to include JG Speedfit (plumbing and heating push-fit systems with fittings, valves, flexi hoses, pipes, and MDPE fittings), JG Underfloor (energy-efficient underfloor heating with JG LowFit systems), JG MultiLayer, Drinks Dispense & Water Treatment (with JG PolarClean), JG Compressed Air (including Air Ring Main), JG Telecoms (microduct connectors for blown fibre), JG Automotive, Agriculture, Cooling, Leisure Vehicles & Modular, and Marine product lines. The Australian market is served with Twist & Lock Range (WaterMarked and Non-WaterMarked), Speedfit Fittings/Valves/Tubing, Speedfit Compressed Air Range, and John Guest Retail Products including Pure Water Hangsell Range.

Differentiator

Problem solved

Functional benefit

Brands

• JG Speedfit: Push-fit plumbing and heating system providing fast, simple and secure connections
• JG Underfloor
• JG PolarClean
• ProLock
• Speedfit Twist & Lock

Products and services

• OD Tube Fittings & RO Tube Connectors Plastic push-fit tube fittings in inch (5/32 to 1/2 inch) and metric (8-15 mm) sizes for OEMs serving water filtration, reverse osmosis, vending, pneumatics, and agriculture applications. Available in polypropylene white, polypropylene black, acetal gray, acetal white, and SuperSeal variants with food-grade EPDM or nitrile o-rings.
• OD Valves Polypropylene and acetal push-fit valves in sizes 1/4 to 1/2 inch for water filtration and beverage dispensing applications. Designed for OEM integration into fluid handling systems.
• CTS Fittings Copper tube size push-fit fittings in sizes 3/8 to 1 inch for plumbing and water system installations, including ProLock and Speedfit Twist & Lock technologies.
• CTS Valves Push-fit valves in sizes 1/2 to 3/4 inch designed to reduce installation times for plumbing and water system installations.
• LLDPE Tubing Linear low-density polyethylene tubing for water treatment, beverage, and fluid system applications, sold alongside push-fit fittings as a system solution.
• PEX Pipe Durable, flexible cross-linked polyethylene (PEX) tubing for plumbing and water system applications.
• Installation Kits Polypropylene fitting kits configured for both installation and service applications.
• OEM Solutions Custom and standard push-fit fittings and half cartridges developed in partnership with manufacturers across diverse industry sectors, enabling OEM integration of push-fit fluid connection technology.
• JG Speedfit Plastic push-fit plumbing and heating system providing fast, simple and secure connections, including plastic fittings, brass fittings, push-fit valves, flexi hoses, pipes, and MDPE fittings for plumbing and heating contractors.
• JG Underfloor Energy-efficient underfloor heating systems and smart heating controls using push-fit technology, including JG LowFit low-profile systems for quick installation.
• JG MultiLayer Multilayer pipe and connector solutions for plumbing applications.
• Drinks Dispense & Water Treatment Push-fit fittings and tubing for beer, beverages, vending and coffee machines, and water filtration and treatment applications, including JG PolarClean products for drinks dispense and water treatment.
• JG Compressed Air Push-fit fittings and pipe for compressed air and pneumatics, offering optimal air flow and rapid assembly, including Air Ring Main systems for industrial manufacturers.
• JG Telecoms Push-fit microduct connectors for blown fibre installation in telecommunications infrastructure, engineered to last in tough environments, including direct buried and protected fittings.
• JG Automotive High-performance push-fit connectors and cartridges for fuel lines, braking systems, power steering, and other automotive fluid systems.
• Twist & Lock Range (Australia) WaterMarked and Non-WaterMarked push-fit fittings with unique grip-then-seal construction for plumbing applications in the Australian market.
• Speedfit Fittings, Valves & Tubing (Australia) Imperial and metric Speedfit push-fit fittings, valves, and LLDPE tubing for Australian market plumbing and industrial applications.
• John Guest Retail Products Retail products including 12mm caravan and motorhome fittings and Pure Water Hangsell Range sold through hardware stores and trade suppliers in Australia.

Quantifiable outcome

• Over 60 years of continuous operation and innovation since 1961
• +1 more outcomes

Named customers4 records

Segments8 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Reliance Worldwide Corporation (RWC)coreStrategic or Co-development PartnerJohn Guest is a brand under Reliance Worldwide Corporation Limited (RWC), a global company that develops and manufactures water movement and control products. RWC provides corporate oversight, shared services, and integration across the family of brands including SharkBite, HoldRite, CashAcme, Eastman, and EZ-Flo.

Scale indicators3 records

Recent moves2 records

Expansion highlights5 records

Direct peers

• SharkBite: SharkBite is the North American push-to-connect plumbing fittings brand under the same parent (RWC); it is John Guest's closest direct peer, targeting the same end-use application (plumbing/heating) with push-fit technology and competing for OEM and professional installer specifications globally.
• Watts Water Technologies: Watts Water Technologies is a US-listed manufacturer of plumbing, water safety, and flow-control products including fittings and valves; it competes directly with John Guest in plumbing/heating specification and distribution channels (wholesalers, OEMs, contractors).
• NIBCO: NIBCO is a leading US manufacturer of commercial and residential plumbing fittings, valves, and flow-control products; it overlaps with John Guest's CTS fittings, valves, and OEM push-fit product lines across plumbing and water systems.
• Uponor: Uponor is a global manufacturer of PEX plumbing, radiant heating, and plastic pipe/fittings systems including its own ProPEX expansion-style fittings; it directly competes with John Guest Speedfit and ProLock in residential and commercial plumbing applications.
• Wavin: Wavin is a European manufacturer of plastic pipe systems and fittings for water, gas, and drainage; it overlaps with John Guest's European plumbing/heating offering and competes for specification in OEM and contractor channels.
• Geberit: Geberit is a European plumbing systems specialist offering push-fit and pressing solutions across sanitary, water, and heating; it competes with John Guest JG Speedfit in European plumbing specification and installer channels.
• Rehau: Rehau is a global polymer-based systems manufacturer with significant plumbing/heating and pipe-connection product lines; it directly competes with John Guest in European plumbing, underfloor heating, and OEM fluid systems.
• Parker Hannifin: Parker Hannifin's Connectors & Fittings division produces fluid connectors, push-to-connect fittings, valves, and tubing for pneumatics, hydraulics, and OEM fluid systems; it overlaps John Guest in industrial fluid handling and compressed air OEM applications.
• Festo: Festo is a leading global supplier of pneumatic automation, fittings, valves, and tubing; its push-in pneumatic connectors overlap John Guest's JG Compressed Air product family and compete for OEM specification in industrial automation and pneumatics.

Broad incumbents

• Reliance Worldwide Corporation (RWC): RWC is the Australian-listed parent of John Guest and the broader family of brands (SharkBite, HoldRite, CashAcme, Eastman, EZ-Flo); it is the broad incumbent that owns, controls, and integrates John Guest into a multi-brand water-movement portfolio spanning plumbing, heating, and water control.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/JohnGuestLtd
• YouTubeyoutube.com/channel/UCWqh-WXirvVbeAPJh9zEcYw
• Facebookfacebook.com/JohnGuestUSA
• LinkedInlinkedin.com/company/john-guest-usa
• Instagraminstagram.com/johnguestusa

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about John Guest