
Rigid Round Inline Back Draught Shutter - Plastic Ducting
Duct Sizes
Available in multiple sizes—100mm, 125mm, 150mm, —ensuring compatibility with a wide range of ducting requirements.
Gravity-Operated Design
The RVK shutter is equipped with a gravity-operated mechanism that effectively controls airflow direction. When the extractor fan is off, it prevents air from flowing back into rooms, helping to eliminate unwanted draughts and cold air.
Secure Fit with Solid Plastic Ducting
Designed with male connections for solid plastic ducting, the shutter provides a tight, reliable fit that reduces air leakage and improves overall system efficiency.
Flexible Installation
Suitable for installation at angles from vertical to 90 degrees, the shutter features an off-centered disc mounted inside a housing, pivoting smoothly on two small lugs. This allows efficient one-way airflow with minimal resistance.
Durable Construction
Made from UV-protected white PVC plastic, the RVK shutter offers long-lasting durability and resistance to environmental wear.
Part of a Complete Range
Compatible with a wide selection of ventilation accessories—including bends, connectors, grilles, and joints—making it easy to customise and expand your system.
Ideal Applications
Perfect for residential houses, flats, apartments, and utility rooms, this shutter provides a practical, reliable solution for improved ventilation performance and enhanced indoor comfort.
Please note: we may send out like for like products from different manufacturers.
You can call us on 01706 227747 or email sales@ductingsuppliesuk.com
Visit our trade counter: Unit 5 Waterside Business Park, Haslingden, BB4 5en. We are open from Monday-Thursday: 8am-5pm, Friday: 8am - 12:30pm.