shown in fig2 a 2c sanitary retainer 103 can include a first member or collet 104 and a second member or sleeve 106 both collet 104 and sleeve 106 can have a generally concentric outer surface sanitary connectors 102 can include a tubular member 108 having a barb connection 110 at one end for connection to a tube not shown and an opposing end with a funnel formation 112 including an expanded circular opening with a flanged portion at a terminating end 114 of course other sanitary connectors are available that may have a different configuration e g with no funnel formation sanitary connectors 102 can be made of any suitable material such as a non metal which can permit the connectors to be heat welded to for example a propropylene or ethylene medical or pharmaceutical bag the same or similar materials can be used in other applications in for example biotech pharmaceutical medical foodstuff fitting connections and manifold applications sanitary connectors 102 can also be made from other plastics stainless steel or any other suitable material as desired or required other configurations of sanitary connector 102 are also available gasket can be any suitable seal such as an o ring seal and can.