- Safe and waterproof connection: Made from ABS material, this duct fan hose adapter provides a safe, waterproof seal between the wall and the vent, preventing air leakage and increasing the overall efficiency of the ventilation system. - Easy wall mounting installation: Flange vent connector designed for straightforward wall installation, saving time and effort during setup and delivering a hassle-free installation experience. - Compatible with various sizes: Available in 100 mm or 150 mm specifications, this vent connector fits a range of duct and vent sizes for flexible installation and adaptable use. - Designed for ventilation systems: Specifically made for ventilation applications, it is suitable for kitchens, bathrooms and other areas where proper air circulation is essential to maintain a comfortable environment. - Use scenarios: Kitchen exhausts, bathroom ventilation, utility or laundry room vents.