They permit airflow to go in a single way and to stop it in the opposite path. These are manufactured from corrosion resistant extruded aluminum. A steel grille installs more than and fully conceals the mounting tabs for your clean up, aesthetic complete. The hearth damper is offset within the https://dampersforindustrialsecto34566.blogscribble.com/37169698/5-essential-elements-for-dampers-for-industrial-sector