Egevent EYCS, EYCS+DA (with damper) model round duct grilles It is used to regulate the amount of air in ventilation systems. It is made of specially rolled 6063 aluminum profile. Standard coating process is done with electrostatic powder painting in RAL 9010 and 9016 color codes, other colors and anodized coating can also be made upon request. It is produced with standard screw. Grille damper and diverter blades are accessories.