ABS Variable Diameter Plastic Ventilation Pipe Reducing Joint Round duct reducer from 100 mm to 150 mm. One-piece molded PVC reducer with excellent sealing and wear resistance. Smooth surface for easy installation on various vent pipes. Ideal for clothes dryers, bathroom fans, kitchen extractor fans, hydroponics, and other ventilation applications. This reducer is suitable for use in duct systems for whole-house ventilation, passive chimney vents, positive air inlets, air conditioning, and heat recovery systems. Made of ABS material for corrosion resistance and high rigidity. Leak-resistant and durable. Compatible with rigid plastic ducts (seal with mastic or foil tape) and flexible ducts (secure with hose clamps). Features: - Made of high-quality ABS material, corrosion resistant and dimensionally stable - Optimized design with smooth interior surface for low airflow resistance - Seamless construction ensures reliable sealing - Suitable for indoor and outdoor use Installation instructions: 1. Connect the duct pipe to the reducer. 2. Seal the joint with aluminum foil tape. 3. Secure with a hose clamp and tighten using a screwdriver.