Connector pipe for a ventilation system of a vehicle

The pipe has a locking unit (40), by which a supporting area (22) is lockable in supporting arrangement at a stretcher structure. The locking unit has a rest area (44), which in cooperation with a counter rest area (46) permits movement of the locking unit in a direction (R1). A locking section (42) moves the locking unit in the direction of the supporting area (22) with the movement in the direction (R 1).