The John Guest Acetal Copolymer Male Adapter is a push-to-connect style fitting made from acetal copolymer plastic. It has 1/4" NPT male threads on one end to connect to pipe threads and a push-to-connect end to insert 1/4" OD polyethylene tubing. The maximum pressure rating is 232 PSI at 73°F. This adapter provides a way to quickly connect plastic tubing to threaded pipe connections in an air or water application. The acetal copolymer plastic offers chemical resistance.