PBPSA welcomes John Guest

PBPSA extends a warm welcome to John Guest Ltd. as our latest member company. All PBPSA members are global leaders in their respective markets and are committed to the use of Polybutene-1 (PB-1) as the most technically advanced and versatile material for piping systems applications. John Guest manufactures its innovative Speedfit push-in fittings and flexible Speedfit lay flat pipe using Polybutene-1.

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John Guest is a leading manufacturer of high quality push-in fittings, piping and plastic plumbing systems for a diverse array of markets worldwide. Their range comprises over 3,000 products for almost every tubing and pipe connection requirement.

The company has a global reputation for quality products and attention to innovation and value engineering. John Guest designs and manufactures high quality push-in fittings and piping and plastic plumbing systems for a wide variety of industries and applications including: plumbing and heating, drinks dispensing and vending, pneumatics, compressed air, water purification, automotive and telecommunications.

John Guest is able to ensure strict control over processes and quality due to the fact that all design and manufacture is consolidated at the purpose built manufacturing complexes at West London and Maidenhead, Berkshire in the UK.
Maintaining oversight for the entire development process from product concept to tool design and tool making through to final assembly and testing, ensures that only products of exceptional quality are produced.

John Guest offers comprehensive Technical Support through their CAD design and Project Engineering services, which includes recommended pipe layouts, flow rates, suggested zone temperatures for heating and advice on commissioning. In addition, they provide on-site support in the UK during the project installation process.

This commitment to quality has resulted in John Guest receiving many awards from the world's leading testing and approval organisations. The company is a preferred supplier to many international companies and PBPSA is proud to include John Guest as a member company.


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Polybutene-1 is often referred to as Polybutene, Polybutylene, PB-1 or PB.

Polybutene-1 is not sold by PBPSA members for use in pipe applications intended for use in North America, and those parties require their customers or distributors not to sell products made from PB-1 into pipe applications for North America.