This is an airflow control ring for the telescopic hose of a Drainvac vacuum cleaner. Outer diameter of the tube where the ring is installed: 32 mm.

Print settings:

• material: PETG

• layer height: 0.2 mm

• nozzle: 0.4 mm

• enable automatic supports

Assembly: After printing, slide the ring onto the tube and rotate it until the inner tab snaps into the cut‑out window in the tube.

Position the ring so that the thinner window wall (3 mm) faces the tube, then slide it onto the tube: