The open slots of aluminum profiles can be covered with FATH cover elements, which are pleasing to the eye and reduces dust accumulation. They are available in plug-in and screw-in versions, just as you need them.
Shop Product Catalog
COVER CAP FOR 45 MM MODULAR DIMENSION
40X40 END CAP BLACK
40X80 END CAP BLACK
45X45 END CAP BLACK
60X60 END CAP BLACK
80X80 END CAP BLACK
90X90 END CAP BLACK
30X30 END CAP BLACK
10MM T-SLOT COVER - BLACK L=2000
10MM T-SLOT COVER - SILVER L=200M
10MM T-SLOT COVER - RED L=2000