Vent-Axia has been the leading manufacturer for 75 years when it comes to ventilation. With this experience behind them, it\'s no surprise that they are innovators as well, continuously producing new lines with energy saving, lo-carbon products. With a vast range spanning cool air to electric heating, and everything in between, you know Vent-Axia is a name you can trust with your ventilation needs. The VA 428238 SAC5 is a reversible controller which can be used with up to 5 Hi-Line Plus Ceiling Sweep Fans . This convenient device allows for greater flexibility and a more targeted operation, which is particularly important where the mounting height is low. Suitable for flush or surface mounting in commercial environments, this controller is infinitely variable and has solid state components. It also features an insulated spindle and a white cover plate.