This invention relates to a connector having an inner polymeric liner with either two opposed flared ends or one flared end and an opposed sealing end, a bendable outer metallic sleeve having two opposed flared ends of essentially similar geometry to either the polymeric liner flared ends or one flared end and an opposed sealing end shelf, and two outwardly facing threaded nuts, each of said nuts having a shelf which engages the opposed flared ends of said metallic sleeve. The connector will often have a ribbed segment between the ends and washers for sealing engagement with the interior wall end portion of the liner at the flared end.