The single speed DX100 bathroom fan with telescopic wall tube and externall grile for a wall or window installation. Designed for bathrooms with IPX5 rating and extracting 21 litres per second and can be installed into walls, ceiling or windows. The timer delay can be set to overrun by 2-20mins once the fan has been turned off. Extraction rate of 76 cubic meters per hour or 21 litres per second. Noise output of 35dB. Fixings included. Size H15.5, W15.5 cm. Manufacturers 2 year guarantee.