Window ventilation with a slimline profile featuring a scotia-moulded front, and is compatible with most window systems (70 mm wide maximum). Eliminating the need for through-frame ventilation.

Maximizes airflow performance and minimizes fabrication and fitting time, with no need to drill through the window frame. Can deliver a greater airflow than through-frame vents; venting over the window frame makes it easier to meet the requirements of Building Regulations, E&W Approved Document F.

General information

Uniclass 2015

Pr_30_59_57_58 Overhead ventilatorsPrimary


F30/175 Cavity ventilators

Specification data - Overhead ventilators

Product Reference


Standard product features


100 mm, can be trimmed for smaller sizes.