Damper sizes range from 6” x 6” (15.2cm x 15.2cm) to 36” x 16” (91.4cm x 40.6cm). The flanged dampers can be mounted for horizontal or vertical airflow, and standard or custom mounting hole ...

Dampers that incorporate a fusible link need an operational test to be performed after installation (NFPA 80, Section 19.3). This ensures the damper is installed properly and there are no ...