Flexible fittings: an ideal solution for applications, where adhesive bonding is impossible or undesired. Suitable for everyday use. The fittings adapt perfectly even if the pipe coupling is not right-angled or straight. In the overview you will be able to see, what external sizes these fittings match: external pipe size and external size of the PVC fittings. Material: PVC elastomer. PVC elastomer features extremely high tensile and tear strength, is extremely flexible and not subject to ageing (“rubberising”).