Size: pneumatic connector connector calibre 6 mm, suitable for PU PE nylon air hose with outer diameter 6 mm, 30 pieces PU-6 couplings in total for your daily needs. Strong and durable: straight connectors made of high quality plastic, high strength, wear and corrosion resistance, air pressure from 0 to 1 MPa, working temperature: -20 to 60C. Easy to use: simple push-in design for connecting to the pipe and for a secure connection. Simply insert the pipe into the bottom of the fittings and do not require additional sealing. Convenience: quick couplings are easy to install, flexible and space-saving. They can be rotated 360 degrees. The release ring has an oval design that can be easily removed. Wide application: widely used in industrial automatic production equipment such as machinery, electronics, automotive, packaging, air compression, vacuum, pneumatic systems, etc.