Linear grilles are manufactured from extruded aluminum. Standard manufacturing is anodized in natural color, if desired enamel paint or Analogue Electrostatic powder coating and coloring. Especially the top of the radiator and fan coil in a raised floor in a computer room, as the vents in large spaces such as conference rooms, a grill in the pool edge and are used for many purposes. Linear view of a multi-element grille can be obtained by the merger of several meters in length for the desired media.