• Material used for parts not recessed into wall: white ABS plastic. • Material used for parts recessed into wall: talc-filled black plastic (PP) giving added strength. • Nominal diameter 100 mm. • Capacitor start 2-speed induction motor coupled to a forward bladed centrifugal impeller, with thermal overload cutout and self-lubricating bushings. • Equipped with electronic timer designed to shut off the motor automatically after a set interval, selectable during installation in the range 3’-20’ (default setting 3’).