The Manrose 12 Volt SELV Fan Range is designed for wall, ceiling or window mounting, the 12 Volt SELV fans are available in three diameters - 100mm (4\"), 120mm (5\") and 150mm (6\") and in seven options. Its suitable for mounting within the splash area of a shower or bath (where current regulations prevent the use of conventional fans), the 12 Volt fan is a standard model manufactured with a 12V - 50Hz shaded pole motor. The transformer and switching mechanism is mounted remotely either in the roof space or high on the ceiling next to the pullcord switch. Pullcord, humidistat, PIR and versions have to be mounted inside the room where the fan is installed and out of the reach of the person using the bath or shower. A Centrifugal 12 Volt fan is available, fitted with a backward curved centrifugal impeller for large airflow against the high pressures caused by longer lengths of ducting and resistance by grilles. The extract rate of the 100mm (4\") model is 85m3/hr 23 litres per second The CF200LV centrifugal fan has an extract rate of 110m3/hr 31 litres per second The units are all manufactured using high impact ABS thermoplastics for strength and durability, aesthetics and easy cleaning Power is provided by a single phase induction motor with pre-oiled bearings for a long, maintenance-free life Designed to exceed the Building Regulations on Ventilation (F1) Mounting: Wall Hole Size: 4\" Type of Extractor: Axial Number of Speeds: 1 Extraction Rate: 23 litres per second Dimensions: Height: 163mm x Width: 163mm x Depth: 50mm