1. Waterproof and Secure Connection This duct fan hose adapter features ABS material, ensuring a waterproof and secure connection between the wall and ventilation. It effectively prevents air leakage and enhances the overall efficiency of the ventilation system. 2. Easy WallMounted Installation Designed for effortless installation, this adapter can be easily mounted on the wall. The installation process is quick and hassle, saving you time and effort. 3. Size Compatibility Available in 100 mm and 150 mm specifications, this adapter is compatible with various sizes of ducts and vents. It offers flexibility and versatility to meet different ventilation system requirements. 4. For Ventilation Applications Specifically designed for ventilation systems, this duct fan hose adapter is for kitchens, bathrooms, and other areas where proper air circulation is essential. It helps improve air quality and maintain a comfortable living environment.