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 & partsRegulator Fitting one touch 4mm – 90º € 15,00 Add to basket SaleOxygen/Mountain High EDSMH EDS O2D1 with Pressure Regulator (DIN-477) € 1.280,00 € 1.050,00 Add to basket Oxygen/Adapters & parts/Mountain High EDSMH Euro DIN 477-9 Pressure regulator (2G) € 329,00 Add to basket