Simplify your plumbing and home improvement projects with the John Guest Tee Connector. This push-fit union tee adapter is manufactured from durable white polypropylene and equipped with EPDM o-rings that utilize John Guest's push-fit technology to make easy, reliable, leak-free connections. These adapters have been designed to connect plastic or copper pipe and are approved for behind-the-wall applications as a permanent leak-free connection. Push-to-connect fittings provide a simple, quick, reliable, and leak-free connection with no tools required. FDA-compliant material; NSF 61 and 51 certified