A Type 50 fitting with 1/4" thread nut and stem for the MKIII/MK4 Regulator.
This nut and stem suits the larger Nitrogen tanks but not disposable cylinders. The MK4 Regulators comes standard with a Type 30 thread which is suitable only for CO2 cylinders. Remove the existing Type 30 Nut and Stem and replace with the Type 50 to fit to Nitrogen cylinders. We recommend using a ratchet gun or socket set to do this.
Note: Regulator not included.