O2 Union 6mm Y, one-touch€ 6,50 One-Touch (Push-to-Connect), 6mm, Y union. In stock (can be backordered) O2 Union 6mm Y, one-touch quantity Add to basket Categories: Adapters & parts, Oxygen Description Description O2 Union 6x6x6mm Y, one-touch. For use with wider 6mm O2 air tube. Related products Oxygen/Adapters & parts/Mountain High EDSMH Euro DIN-477 #9 Pressure regulator (2G) € 329,00 Add to basket SaleOxygen/Mountain High EDSMH EDS O2D2 kit € 1.295,00 € 1.075,00 Select options Oxygen/Adapters & partsO2 O-RING suitable for DIN-477 #9 couplings € 1,50 Add to basket