The new Vent Axia Solo Pro is a new and improved version of the Vent Axia Solo model range. With improved aesthetics, sound and installation it has been specifically designed for effective ducted ventilation of internal bathrooms, toilets and other small rooms. Finished in White, the new Solo Pro range can be used with 100mm diameter smooth bore duct in straight runs equal to 50m, yet still meets the 15l/s required by the current Building Regulations Document F for ventilation of bathrooms. IPX4 Rated.