1. High-quality materials: Our 6PCS Tube Adapter CPAP Accessories for Z1 Z2 Travel CPAP Machine are made with premium materials, ensuring long-lasting use and reliable performance. 2. Seamless compatibility: Designed specifically for Z1 Z2 Travel CPAP Machine, our tube adapter seamlessly connects your machine to the necessary accessories, allowing for a smooth and efficient airflow during sleep therapy. 3. Enhanced convenience: With these CPAP accessories, you can easily connect and disconnect your tubing without any hassle. The user-friendly design makes it convenient to set up and adjust your CPAP equipment, providing a comfortable and hassle-free experience. 4. Improved portability: The compact design of our tube adapter allows for easy transportation and storage. Whether you're traveling or moving your CPAP machine from room to room, these accessories ensure your device remains portable and ready for use. 5. It allows you to connect the hose into the port on the CPAP machine. This tubing adapter is compatible with all universal tubes that have a 22mm rubber cuffed end. Outer diameter on both ends: 20mm / 14mm. Color: Transparent Material: Plastic Package Contents: 6 x Tube Adapter CPAP Accessories Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowance is +/- 1-3 cm.