Nevonexpress supplies high quality Air Pneumatic PG 8mm to 6mm Straight Push in Connectors Quick Fittings A3T6 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.