Makes connecting tubing to female threaded connections quick and easy. Fittings are manufactured in white polypropylene with food grade EPDM O-ring. These fittings have been developed to satisfy the filtered pure water market and wide range of applications. For use with plastic or copper OD sized tubing Polypropylene body, EPDM O-ring Quick and easy connection/disconnection Lead free materials Food Quality, suitable for potable liquids and pure wate .