Attaches to our MKIII & MKII Regulator

This nut and stem suit Oxygen, Argon, Helium tanks

The normal MKIII Regulators that we sell come with a Type 30 thread which is suitable only for CO2 cylinders and nitrogen and CO2 mixed gas cylinders however if you would like to use this nut and stem you need to remove the existing type 30 Nut and Stem and replace with this one, we recommend using a ratchet gun or socket set.