Round duct reducer from 100mm to 150mm. This one-piece forming ABS reducer provides excellent sealing and is wear-resistant with a smooth surface for easy installation on various vent pipes. Ideal for solving duct size transition issues. Suitable for use with clothes dryers, bathroom fans, kitchen extractor fans, hydroponics, and more. This duct reducer can be used as part of a duct system for applications including whole house ventilation, passive chimney vents, positive air inlets, air conditioning, and heat recovery systems. Made from high-quality ABS material, it offers corrosion resistance and high durability. The seamless one-piece molding ensures leak-proof and robust performance. Compatible with rigid plastic duct systems—seal using duct tape or putty. For flexible duct systems, secure with a hose clamp. Perfect for use with clothes dryer vents, bathroom exhaust, kitchen range hoods, inline exhaust fans, and hydroponic ventilation setups. Features: - Made from new ABS material, resistant to corrosion and deformation - Smooth interior design reduces wind resistance - Seamless construction provides reliable sealing performance - Suitable for both indoor and outdoor applications Installation: 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.