PC4-M6 pneumatic air straight quick fitting is widely used for connecting extruder.
Suitable for CR-10 Series (CR-10/CR-10mini/CR-10S/CR-10S4/CR-10S5) and Ender-3 3D printer.
The upper part can be inserted 4mm PTFE tube and self-locking.
The thread is M6 (6mm / 0.24inch) for easily connecting.
Made of high quality stainless steel with high-temperature and rust resistant, simple and durable.