The Fantech VT 20A Auxiliary Control is designed for use with Fantech VT 20M controls on Fantech Premium Bath fans. The auxiliary unit provides a 20 minute high speed boost by using the push button convenient for bathrooms, kitchens, laudry rooms, or any area which requires specific ventilation rates. This control give you the boost option in a single location.
20 Minute Easy Boost
Push one button and your system runs for 20 minutes before automatically powering down.