Nevonexpress supplies high quality 13mm Male Thread 8mm Push in Joint Air Pneumatic Connector online. Intended for Polyurethane or Nylon tubing. Even the management of this tube can be altered. Elliptical release ring assists to link tube readily by manual, no special tools needed. External (and Interior where appropriate) hexagonal wrench tightening. These Quick fitting are employed for industrial automation systems, pneumatic systems and cannot be implemented on any medicinal gear.