The invention concerns a respiratory ventilation connector for connection in the flow path between a patient interface and one or more fluid conduits in a respiratory ventilation system. The connector has first and second opposing body portions joined together so as to define a connector body having a first port, a second port and an internal passageway for fluid communication between said first and second ports. Each body portion has respective first and second spigot portions arranged in use to form an upstanding circumferential spigot formation about the first port. The spigot formation has an internal diameter which is greater than the diameter of the port so as to allow reception of a tubular fluid conduit within the spigot for communication with the first port in use.
