Fitted with motors mounted on silent elastic blocks, this fan delivers incredibly quiet running and exceptional performance with stylish features. This fan has a 6" (150mm) exhaust so is normally suited to use in Utility Rooms, Kitchens, or larger Bathrooms. This model is for connection to a separate on/off switch (no timer), for example, a light switch or spurs connection unit. Dimensions: 214mm wide x 214mm high. Spigot is 149mm diameter (for connection to 150mm ducting) and projects for 95mm beyond the installed surface.