125mm to 100mm Duct Reducer – Designed to seamlessly connect 125mm and 100mm round ventilation ducts, making it easy to adapt different duct sizes within extractor fan, cooker hood, and HVAC installations. Smooth Airflow Transition – The tapered internal design promotes efficient airflow between duct sizes, helping to minimise turbulence and pressure loss for optimal ventilation system performance. High-Quality Plastic Build – Manufactured from strong, lightweight, and corrosion-resistant plastic for reliable long-term use in residential and commercial ventilation applications. Compatible with Ventilation Systems – Ideal for bathroom extractor fans, kitchen cooker hoods, inline fans, utility rooms, laundry ventilation, air extraction systems, and general HVAC ducting projects. Simple Push-Fit Design – Designed to fit standard round ducting for fast and hassle-free installation. Lightweight construction allows easy handling while providing a secure and dependable connection., Weight: 0.0551155655 pounds, Manufacturer: Airflow