The BPEX pipe was made in the United Kingdom by John Guest Speedfit. This PEX pipe is made up of 5 layers, the central layer of which is a blue oxygen barrier which prevents air penetration into the system, thus reducing the effect of corrosion on the metal components. Due to its low thermal conductivity, when it transports hot water, the speedfit hose is colder and therefore safer to the touch. Note: JG Speedfit inserts should be used.