The BG-FILCOTEN parkline is the monolithic drainage system for parking garages with silent comb profile and drainage-optimised rib construction. Drainage systems are a necessity in parking garages and need to deal with a number of challenges. Challenges that are not quite met by traditional rectangular gutter systems. FILCOTEN® parkline is a different story: our system shows that HPC, a modern mineral high-performance concrete combined with a sophisticated structure, is the right solution for any challenge.