Conduit with magnetic connector

A system comprising:

• an RPT device and a patient interface, and an air circuit connecting the RPT device to the patient interface;
• the RPT device configured to supply air at positive pressure for respiratory therapy;
• the air circuit connected to the patient interface at a connection port;
• the patient interface including a positioning and stabilising structure and a mask assembly including a plenum chamber and a seal forming structure, the positioning and stabilising structure including a headgear conduit for receiving a therapeutic pressure of at least 6 cmH2O above ambient air pressure from the air circuit, the headgear conduit extending along a crown of the patient's head from a first parietal bone to a second parietal bone;
• the plenum chamber including a plenum chamber opening sized and structured to receive a flow of air at the therapeutic pressure for breathing by a patient, the plenum chamber including a first plenum chamber receptor assembly;
• the seal forming structure constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's airways, said seal forming structure having a hole therein such that the flow of air at said therapeutic pressure is delivered to at least an entrance to the patient's nares, the seal forming structure constructed and arranged to maintain said therapeutic pressure in the mask assembly throughout the patient's respiratory cycle in use;
• the headgear conduit including a first end with a first conduit connector assembly and configured to deliver air through the first conduit connector assembly and through the first plenum chamber receptor assembly;
• wherein the first conduit connector assembly is configured to engage with the first plenum chamber receptor assembly, and be rotatable about an axis that extends through the first plenum chamber receptor assembly;
• and
• wherein when the first conduit connector assembly is engaged with the first plenum chamber receptor assembly the first conduit connector assembly is restricted from translating in a first direction perpendicular to the axis, and permitted to translate in an opposite second direction.