Designed for the safe ventilation of bathrooms, toilets and shower rooms, these 100mm (4\") in-line extractor fans remove any risk of an electric shock in wet areas as the fan is mounted remotely. Powerful, yet extremely quiet in operation, the extract rate is 85m³/hr (23 ltr/sec). Available with or without a timer, the fan kits are supplied complete with fan unit, one length of PVC flexible ducting, one internal (white) and one external wall grille, fixing screws, plugs and straps to secure the duct to the grilles. Power is provided by a single phase induction motor with pre-oiled bearings for a long, maintenance-free life. The units are all manufactured using high impact ABS thermoplastics for strength and durability, aesthetics and easy cleaning. Designed to comply with the 2006 Building Regulations on Ventilation (F1).