Round duct reducer from 100mm to 150mm. This one-piece molded PVC reducer offers good sealing and wear resistance. Smooth surface for easy installation on various vent pipes. Ideal solution for connecting ducts of different sizes. Suitable for use with clothes dryers, bathroom fans, kitchen extractor fans, hydroponics, and more. This reducer can be used as part of a duct system for applications such as whole house ventilation, passive chimney vents, air intake systems, air conditioning, and heat recovery systems. Made from ABS material, it is corrosion resistant and has high durability. The one-piece molded design ensures leak-proof performance. Compatible with rigid plastic duct systems seal with duct tape or putty. Also compatible with flexible duct systems secure with a hose clamp. Ideal for use with clothes dryer vents, bathroom or kitchen exhaust systems, inline exhaust fans, hydroponic setups, or range hoods. Features: - Made from new ABS material, resistant to corrosion and deformation - Optimized design with smooth interior to reduce airflow resistance - Seamless construction for excellent sealing performance - Suitable for both indoor and outdoor use Installation: 1. Attach the duct reducer to the pipe. 2. Secure the connection with aluminum foil tape. 3. Place a hose clamp over the joint and tighten with a screwdriver.