SharkBite PEX Pipe is a cross linked polyethylene pipe for use in a wide range of residential and commercial, plumbing applications. Manufactured without an oxygen barrier for potable water systems and with an oxygen barrier for radiant floor and hydronic heating applications. A repeating SharkBite imprint pattern provides a visual aid to determine if the pipe has been inserted all the way into the SharkBite push to connect fitting. This feature only works if the pipe is cut between the SharkBite imprint pattern.