The Xpelair LV100 4-inch/100mm single speed axial extract fans are ideal for use in bathrooms, shower rooms and toilets. These Safety Extra Low Voltage (SELV) fans are supplied with a 12V transformer for safe installation in zone 1, as well as a universal fitting kit that includes a telescopic wall tube, gasket x2, outer grille, and skirt moulding. LV100 fans feature an exceptionally shallow outlet spigot, making them ideal for compact window and wall installations. A backdraught shutter prevents external noise and draught from entering the building when the fan is not in use.