Our 4" Channel Galvanized Stamped Steel package includes the channel depth of choice or channel length if choosing Pre Slope, gratings and fasteners. Each channel is 3.3 ft in length, with a Snap and Lock connection so you can attach end to end to create a longer and custom size run. In addition, each channel has a 90 degree turn already within the system - no adapters needed! Please see below for outlet specs per channel depth.  With our Pre Slope system you can create a run up to 50 ft in length with a 1% slope. With an option of an option of a  4" outlet on the end no matter the channel run length.  Neutral Channels; The 2", 3", 4", 6", and 8" Depth channels have bottom outlet option available with 4" Pipe connection. Each of these systems will also have end cap outlet options available as well. The 2", 6", and 8" Depth option will use a 4" end cap outlet pipe, while the 3" and 4" Depth option will use a 3" end cap outlet pipe. For Pre Slope Channel articles please see the Pre Slope Specification Sheet Material ............. PPE Plastic  Dimensions ....... 39.4"L x 5.8"W  Load Class ....... A Class - 3,300 LBS INCLUDED IN PACKAGE 1 - Channel Depth of Choice 1 - Unit Galvanized Stamped Steel Grating 2 - Grating Fasteners