Our MEGA 400FC trench drains come with removable E and F load class ductile cast-iron gratings and rebar installation brackets to simplify the installation process. This system has the option of being fitted with a 0.5%, 1%, or cascading internal slope built in. The fiber concrete has the ability to withstand extreme hot and cold temperatures, and a galvanized stamped steel edge is attached for the cast iron bolt-down mechanism and for weight reinforcement. This system comes classified as either an E or F load class which means it can withstand loads up to and including 132,000 LBS and 198,000 LBS respectively. End caps and concrete rebar installation brackets are purchased separately.