TUBE CONNECTOR SPECIFICATIONS:
1.This quick release male tube connector is for ∅4 mm
    filament guiding Teflon PTFE
2.Tubing with M5 or M6 thread (O-ring included) for
   your option. Good day!
3.Tube Size：∅4 (mm)
4.Thread Size：M5 ~ M6 (please choose the size you like 
   and leave us a message ，or we will send you randomly ，
    thank you for your understanding !)
5.Overall Length：20 (mm)
6.Material：Brass ( Zinc Coating )

Package Includes：
Teflon PTFE Tubing Connector x 1 Pcs