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 ductwork of different sizes. 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 ABS material, it is corrosion resistant and features high hardness. The one-piece molded design ensures leak-proof and durable performance. Can be used with rigid plastic duct systemsseal with duct sealant or tape. Compatible with flexible duct systemssecure with a hose clamp.Perfect 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 - Smooth interior reduces airflow resistance - Seamless construction provides 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.