- Smooth transition between duct sizes: fits systems with diameters from 80 mm to 150 mm, enabling a seamless change between different pipe sizes while promoting optimal airflow and proper system function. - Adjustable sizes: quickly adapts to 80, 100, 110, 120, 130 and 140 mm ducting, simplifying installation and ensuring compatibility with different setups for convenience and versatility. - Durable material: plastic channel reducer built to last; heat and wear resistant for reliable long term performance in various environments; sturdy construction supports longevity. - Easy installation: user friendly and requires no special tools; attach to the system with standard plugs and you are ready to go; streamlined design saves time and effort. - Applications: ideal for HVAC ducting where size changes are needed; suitable for venting in bathrooms or kitchens; useful for dust collection or shop ventilation requiring different duct diameters.