PTFE tubing pneumatic quick couplers using for Bowden Extruders.
This adaptors fit the OD4mm ID2mm tubing (KMC-005) , which are perfect for 1.75mm filament.
This is a great way to securely hold your tubing in place without having to permanently glue it!
The PTFE tubing simply pushes into the blue fitting and it holds tight.
To remove the tubing, push the blue fitting towards the rest of the adaptor, and the tubing will simply pull out easily.
For outer PTFE diameter: 4mm