The Vent-Axia SOLO PLUS T Centrifugal Extract Fan has an adjustable overrun timer and is flush or surface mountable. It has 2 speeds as well as an optional continuous trickle mode. The Solo Plus range from Vent-Axia has been specially designed for through the wall and ducted applications, suitable for internal bathrooms, toilets and other small rooms. Finished in white, the Solo Plus can be flush or surface mounted, with a position 100mm circular spigot for rear entry or connecting to a vertical ducting system. The powerful centrifugal impeller allows installations using 100mm ducting in straight runs up to 50m, whilst still achieving 15 l/s as required by Document F of the current Building Regulations.