Learn more about our fans, from the inside and out. Get specs and installation guides for the most revolutionary ventilation fans on the market today. Click on any model number below to get more detailed specifications.

PREMIUM RADIATION DAMPER KIT: RDF1
When the air temperature passing through the damper exceeds 165°F, the fusible link melts, triggering the thermal fabric to automatically close across the damper. Airflow is interrupted by a flame and heat barrier, preventing the rapid spread of fire to other areas. Learn more