View basket “O2 universal mounting kit from Mountain High” has been added to your basket. O2 Union 4mm Y, one-touch€ 6,00 One-Touch (Push-to-Connect), 4mm, Y union. In stock (can be backordered) O2 Union 4mm Y, one-touch quantity Add to basket Categories: Adapters & parts, Oxygen Description Description O2 Union 4x4x4mm Y, one-touch. Related products Oxygen/Adapters & partsRegulator Fitting one touch 4mm – 90º € 15,00 Add to basket Oxygen/Adapters & parts/Mountain High EDSMH Euro DIN 477-9 Pressure regulator (2G) € 329,00 Add to basket Out of stockOxygen/Oxygen cylindersMountain High oxygen cylinder Read more