Push fit PEX pipes are designed for use in both hot and cold water plumbing and heating applications. Manufactured from cross-linked high-density polyethylene, each pipe is extremely tough, flexible and resistant to limescale. These pipes are fully compatible with traditional brass compression fittings as well as BS 7921 push fit fittings. It should be noted that PEX pipes are not designed to be installed in a location where they will receive direct sunlight, if this is done, painting or lagging is a requirement.