This pressure-independent automatic balancing damper adjusts to changes in system pressure to maintain a constant airflow. Works on both supply and exhaust applications. Adjusts easily in the field without additional tools and installs into round ductwork without fasteners or adhesive.
Antimicrobial plastic construction inhibits microbial growth. UL2043 classified for flame spread and smoke development. Choose from flanged grille mounting box or square to round transition.