View basket “O2 O-RING suitable for DIN-477 couplings” has been added to your basket. O2 Union 4mm T, one-touch€ 6,00 One-Touch (Push-to-Connect), 4mm, T union. Only 3 left in stock O2 Union 4mm T, one-touch quantity Add to basket Categories: Adapters & parts, Oxygen Description Description O2 Union 4x4x4mm T, one-touch Related products Oxygen/Adapters & partsO2 universal mounting kit from Mountain High € 159,00 Add to basket SaleOxygen/Mountain High EDSMH EDS O2D1 kit € 995,00 € 825,00 Select options Oxygen/Adapters & parts/Mountain High EDSMH Euro DIN 477-9 Pressure regulator (2G) € 329,00 Add to basket