Egevent EKP-1, EKP+D-1 (with damper) model grilles are used as suction and blowing grilles 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 be made according to demand. It is produced with screws in the standard, if a hole is not desired in the frame, it is produced with a latch or spring system. It is a culvert damper accessory. Control dampers can be made of aluminum in the form of opposing or parallel blades.