Jay R. Smith Mfg. Co. offers a full line of trench drain products covering a broad scope of manufacturing, processing, commercial, industrial and residential applications. The Enviro-Flo® Trench Drain Series, Figure Numbers 9930 and 9931, is made from 100% polypropylene, making it light weight, durable and easy to install. The Enviro-Flo® system can consist of 15 sloped and 15 neutral channels for any configuration. The Smith/ACO Trench Drain Series, Figure Numbers 9810 through 9860, is made from precast polymer concrete and fiberglass. The Smith/ACO system is sloped with a radiused bottom. The smooth, uniform interior of these channels offers maximum hydraulic performance. Jay R. Smith Mfg. Co. Drainage Systems includes a wide variety of grate types and materials to meet all installation requirements. For more information, please visit www.jrsmith.com