The Hepworth Terracotta Bonnet Insert Ventilation Terminal Buff 180mm is a high-quality, durable solution for efficient ventilation in your home or construction project. This sturdy accessory, made from robust terracotta, fits into chimneys or similar structures to maintain ideal airflow and reduce moisture build-up. The buff colour offers a natural aesthetic that blends seamlessly with most architectural designs. Easy to install and designed for long-term use, the Hepworth bonnet insert is an essential component for maintaining a comfortable indoor environment.