Xpelair DX100T 4 100mm Square Bathroom Extractor Fan With Timer Part of Xpelair's latest range of domestic extractor fans, the DX100T from Xpelair is a 4 100mm extractor fan with a built-in over-run timer to continue the extraction of moisture and odours after the unit is switched off, and is adjustable for a 2 - 20 minute run time, offering extra control over humidity and odours in bathrooms, shower rooms, cloakrooms, and toilets. the DX100T utilizes Xpelairs revolutionary Ghost air movement technology, making this the quietest intermittent fan range available on the market today. Complete with a universal mounting kit, installation of your new bathroom extractor fan has never been simpler. This kit includes: 1x wall tube, 2x gasket, 1x outer grille and skirt moulding for window mounting in single glazing up to 6mm, and 1x air operated backdraught shutter, outer grille and ducting. Main Features: 100mm (4) axial extractor fan with timer Maximum fan performance 21 l/s