FILCOTEN® by NDS® is a trench drain system that captures and conveys storm water on commercial and residential sites. The FILCOTEN® channel sections are made from an industry leading high-performance fiber-reinforced concrete which is stronger, lighter, and more durable than the competition. FILCOTEN® by NDS® offers a wide range of grates to fit any application and design aesthetic. Each FILCOTEN® grate is manufactured with security in mind. All grates feature a 4 point locking system to ensure secure connection, anti-sliding lugs to eliminate lateral shifting, and are compatible with the Anti-vandalism locking device to prevent unwanted removal. NDS® offers a full line of FILCOTEN® products to complete any project. The FILCOTEN® Ductile Iron Slotted Grate can be used with any FILCOTEN® 200 channel section or accessory. Be sure to check out the wide range of grates available for the FILCOTEN® 200 line.