Pipe fittings for air ducts - Material and durability: The reducer piece is made from high-quality, thicker ABS material with increased hardness. This provides a strong seal and longer service life for reliable operation in ventilation setups. - Precision and workmanship: This air duct adapter is professionally manufactured with careful attention to dimensions and a thoughtful design. It delivers accurate sizing to avoid fit issues and allows a secure, easy connection to the fan interface. - Function and compatibility: It is a practical, robust, and compact reducer or enlarger for piping. It is designed to connect two pipes of different diameters, whether rigid or flexible, to fans or from fans. It supports connections from small to large and from large to small. - Use scenarios: - Connect a smaller duct to a larger inline fan in a home or workshop ventilation system. - Join rigid and flexible ducts of differing diameters in a dust extraction or ventilation setup. - Adapt a large diameter duct to a smaller flexible hose for general air handling or exhaust tasks.