The SharkBite EvoPEX system is a push-to-connect rough-in plumbing solution that requires no special tools, crimp or clamp rings to make a connection. EvoPEX fittings improve efficiency and reduce installation time. Green visual indicator lets you know when pipe is inserted to the proper depth and reduces the risk of installation errors and potential leaks. Made from high-performance acudel polymer, which provides outstanding chemical and chloramine resistance along with excellent anti-decay stability and dimensional stability. SharkBite PEX pipe and EvoPEX fittings are made in the USA and come with a 25-year system warranty.