... connector is made up of body,in O-ring,out O-ring,spacer ring, securing ring and locking ... clip fastener to connect two connectors together and then pull back to assure a complete connection.So that ... of the clip button,lock expansion,you can easily pull out the connector,before reconnect ,it should be relubricate ... are made up of body, in O-ring, out O-ring,spacer ring,securing ring and locking spring. ...