The IBD2-D is a UL555 Classified, 1 1/2 hour rated, static fire damper and the (D)IBD2-D is a UL Classified, 1 1/2 hour rated, dynamic fire damper. They both feature:
- An integral sleeve to ensure appropriate sleeve installation and allow delivery direct to the job site.
- An access door factory installed in the damper sleeve.
- A FAST Retaining Angle supplied with the damper to complete the installation.