Twist and Lock manufactured from high-quality engineered plastic with EPDM O-ring. Suitable for hot and cold water plumbing applications. Can be used with copper, PEX and CPVC pipe. Approved for behind the wall installation.Quick-connect and disconnectEasy to use in confined spacesNo tools requiredPermanent leak-proof connectionPlastic products are lead-free and corrosion-freeTwist and lock for added securityThe PEI range is not suitable for compressed air or heating applicationsLower thermal diffusivity maintains safer surface temperatureFor use with copper, CVPC and PEX pipe