The bubble-tight isolation dampers are Flanders/CSC’s top-of-the-line dampers. They are used primarily for isolation of a filter or filter bank during the filter change-out process. These dampers were specifically designed to provide cost effective isolation of filter banks during filter change-out and should not be used as control dampers. A variety of sizes and configurations are available for a wide range of airflow's. Each bubble-tight damper is leak tested at the factory to insure a "bubble-tight" seal at a differential pressure of 10 inches water gage.

These dampers are available with the standard manual actuator, or optional electric and pneumatic actuators.