Up for your consideration is a set of Harris Cutwelder regulators. Included is a Harris Cutwelder 101-100C oxygen regulator with a CGA-540 bottle connection and a Harris Cutwelder 101-15C acetylene regulator with CGA-510 connection. These regulators have B size (9/16-18) hose connections.
These regulators have light scratches from storage but are new old stock and have never been used. I also have a Harris 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!