Round duct reducer from 100mm to 150mm. This one-piece molded PVC reducer offers excellent sealing and wear resistance. Features a smooth surface for easy installation on various vent pipes. Provides an ideal solution for duct size transition. Suitable for use with clothes dryers, bathroom fans, kitchen extractor fans, hydroponic systems, and more. This duct reducer can be used as part of a comprehensive duct system for applications such as whole house ventilation, passive chimney venting, positive air inlet, air conditioning, and heat recovery systems. Constructed from high-quality ABS material for superior durability, corrosion resistance, and high impact strength. Seamless molded design ensures leak-proof and durable performance. Compatible with rigid plastic duct systems—seal with duct tape or putty. Also suitable for flexible duct systems—secure with a hose clamp. Ideal for use with clothes dryer vents, bathroom exhaust systems, kitchen range hoods, inline exhaust fans, and hydroponic ventilation setups. 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 applications Installation Instructions: 1. Connect the duct pipe to the reducer. 2. Secure the joint with aluminum foil tape. 3. Place a hose clamp over the connection and tighten with a screwdriver.