A connector (1) for use with a conduit (3) to supply gases to a user (13) is disclosed. The connector (1) comprises a pair of connectors (22,23), adapted to fit together and swivel relative to one another. More particularly, the connector may comprise a female (36) and male (34) connector assemblies, adapted to be push fit together. The female connector (36) assembly preferably has an extended shoulder and a number of triangular guide slots (43,44), the slots being shaped so as to be wider at one end. The male connector assembly preferably comprises a male portion (37) and a sleeve (38) that when joined, cannot be easily separated by axial or torsional tension applied to either, but may rotate freely relative to each other. The sleeve (38) preferably has a number of guide ridges (41,42) running axially along its outside surface that slidably mate with the guide slots (43,44) on the female connector (36).