PC4-M10 pneumatic male straight quick connector is widely used for connecting bowden extruder.
Suitable for Ender-3 3D printer and CR-10 Series (CR-10/CR-10mini/CR-10S/CR-10S4/CR-10S5)
The upper part can be inserted 4mm PTFE tube and self-locking.
The thread is M10 (10mm / 0.4inch) for easily connecting.