SL is decoratively designed linear aluminum grille with 30 degrees declined fixed blades.
Straight-line linear grilles are available in a single length up to 5.6 meters or in multiunit endless strips.
For multiunit diffusers the wall frame has to be straight to allow good alignment.
SL DL diffusers are a combination of SL blades for 30 degrees diffusion and DO blades for straight diffusion.
Springs (Option - matching colors).