I bought the Scubapro S600 M25 regulator new and used it about four or five times. It has a swivel and is in excellent condition. It is the best regulator that I have owned during fifty plus years of scuba diving. It was working perfectly when I dove one year ago in southern Illinois. I would recommend that the regulator be serviced prior to diving. Call 812 887 50 seven nine for information. No shipping..Local sale.