Included is a Victor G350-150-540 oxygen regulator with a CGA-540 connection and a Victor G350-15-510 acetylene regulator with a CGA-510 connection. This regulator set has some light scratches from storage but is new and has never been used. I also have a Victor cutting torch set as well as many other cutting and welding torches, tools and equipment listed if you are interested. Please feel free to ask any questions you may have and thanks for looking!