SharkBite PEX pipe is a cross-linked polyethylene pipe that can be used in a wide range of plumbing applications, including potable water, municipal water service, radiant heating and fire suppression systems. Unlike rigid pipe, PEX pipe expands and contracts as water freezes and thaws within the pipe, which makes it less susceptible to burst, and minimizes the chance of a leak during extreme temperature changes. Proudly manufactured in the USA, SharkBite PEX pipe has a rating of 5306, meeting the highest chlorine and UV resistance, which makes it ideal for continuous hot water recirculation and jobs with extended schedules.