Quick and easy assembly. Compatible with all ventilation system components with a diameter of 80-100-120-125-150 mm. Practical use: Allows you to increase or decrease the diameter of ventilation ducts and connect various rigid, flexible, or other types of ducts to fans, dryers, and bathroom extractors. Universal: Ideal for homes and apartments with bathroom, kitchen, garage, and other ventilation systems. Also suitable for office and industrial ventilation systems, both indoors and outdoors. High-quality material: Made of durable PVC plastic, this connector retains its technical and aesthetic properties under various conditions. Robust, lightweight, and flexible, it offers comfortable and reliable use for a long time.