The redesigned KlassikDrain K100S modular trench drain system has a few new features. A new channel has been re-engineered for fast, smooth evacuation of liquids, offering a 0.5% slope. In addition, the new design utilizes sloped meter and/or half meter length polymer concrete channels to form a continuous run. Other features of the new system include 40 different channel depths to create a continuously sloping 40-meter run, neutral channels available in four depths, and an integrally cast-in, galvanized steel grate support rail. Aco Polymer Products. 800-543-4764.