View basket “Transfill Adapter, CGA-540 to DIN 477-9 (Euro)” has been added to your basket. O2 Union 6 to 4 mm I, one-touch€ 7,00 One-Touch (Push-to-Connect), 4 x 6 mm, I union. Only 2 left in stock (can be backordered) O2 Union 6 to 4 mm I, one-touch quantity Add to basket Categories: Adapters & parts, Oxygen Description Description O2 Union 4 x 6 mm I, one-touch. To connect the smaller 4 mm air tube to the wider 6 mm tube. Related products SaleOxygen/Mountain High EDSMH EDS O2D2 kit € 1.250,00 € 1.050,00 Select options SaleOxygen/Mountain High EDSMH EDS O2D2 with Pressure Regulator (DIN-477) € 1.490,00 € 1.250,00 Add to basket Out of stockOxygen/Oxygen cylindersMountain High oxygen cylinder Read more