Our Cast Iron Slotted package is rated at C Class - 55,000 LBS and fitted with a powder coated ductile cast iron grating for longevity and durability.    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. See below for channel depth outlet configurations.  With our Pre Slope system you can create a run up to 50 ft in length with a 1% slope. With 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 / Ductile Cast Iron Dimensions ....... 39.4"L x 5.8"W  Load Class ....... C Class - 55,000 LBS INCLUDED IN PACKAGE 1 - Channel Depth of Choice 2 - Units of C Class Ductile Cast Iron Gratings 2 - Grating Fasteners