If you own a nitrogen regulator and want to use it on a Co2 tank, then the following adapter can save you money! Simply screw on one side of the adapter to your nitrogen regulator and the other side to your Co2 tank valve.
Connects a nitrogen regulator to CGA-320 Co2 tank valve.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov.