This regulator can be used for a wide range of gasses but for other gas types a different Nut and Stem Is required. Out of the box this regulator will be suitable for Carbon Dioxide (CO2 and CO2+Nitrogen Mixed Gasses). However if you want to purchase this regulator for other gas types you can interchange the nut and stem with either a Type 10 or Type 50 as as shown below: Type 10 Nut & Stem : Helium, Argon, Oxygen Type 50 Nut & Stem : Nitrogen
