Vents 150mm to 100mm Ducting Reducer – 6” to 4” Round Plastic Vent Connector for Extractor Fans & Ventilation Systems

• Simple push-fit installation – Connects 150mm ducting to 100mm ducting quickly and securely, ideal for adapting duct sizes in ventilation systems.
• Smooth airflow transition – Tapered design helps reduce air resistance and maintain efficient airflow between different duct diameters.
• Durable plastic construction – Made from robust polypropylene that resists moisture and temperature changes for long-term, reliable performance.
• Clean white finish – Neat, corrosion-free surface blends easily with standard ducting and requires minimal maintenance.
• Versatile ventilation use – Suitable for bathroom and kitchen extractor fans, cooker hoods, tumble dryers, and in-line ventilation systems.

This VENTS UK 150mm to 100mm ducting reducer is designed to help you connect different diameter pipes within a ventilation system. Whether you’re fitting an extractor fan, upgrading kitchen ducting, or adjusting an existing airflow setup, this simple plastic adapter makes the job easier. The smooth internal shape supports steady airflow, helping your fan operate efficiently when stepping down from 150mm to 100mm ducting. Made from lightweight but sturdy plastic, it’s easy to slot into place and works with standard round rigid ducting, in-line fans, cooker hoods, and other common ventilation fittings. With a clean white finish, it blends seamlessly into most home installations, offering a tidy and practical solution for everyday ventilation projects.