With a slim profile of only 17mm, Silhouette blends in with the wall surface to provide an unobtrusive installation. Silhouette has a FID performance of 21 l/s. Silhouette can be ceiling/panel mounted and connected to an appropriate duct run to the outside.- Standard model- 17mm stylish ultra low profile grille- Downstream airflow guide vanes for improved pressure development- Designed for vertical or horizontal application- Fan IPX7 rated- Indication light- Suitable for wall, ceiling, panel and window mounting- Meets current Building Regulations Approved Document F