Push-In Fitting, Self-Sealing Qsk-1/8-4 Male Thread with External Hexagon. Size=Standard, Nominal Size=1, 6 Mm, Approved Tubing Type= (* Pan-, * Pan-Mf-, * Pan-R-, * Pan-V0-, * Pen-, * Pfan-, * Pln-, * Ptfen-, * Pun-, * Pun-Cm-, * Pun-Duo-, * Pun-H-, * Pun-H-Duo-, * Pun-S-, * Pun-S-Duo-, * Pun-V0-) , Tubing Insertion Depth=12, 5 Mm, Type of Seal On Screw-In Stud=Coating, Festo