NDS 864GMTL 5" Pro Channel Drain Kit with Metal Grate This Pro Series channel drain kit includes 2 galvanized Steel grates, the channel drain with bottom outlet Pre-Assembled as well as 1 end outlet and 1 end cap The channel, end cap, and end outlet are made from polypropylene. The grate is made from galvanized Steel This channel is recommended for medium-duty pneumatic tire traffic, autos and light trucks at speeds less than 20 mph Some installations may require a concrete collar to meet load ratings, loads are based on encasing product in concrete also must be installed using nds instructions Fits 3-inch (hub) and 4-inch (spigot) sewer and drain pipe