Specification - T1400 - 6in Wide Trench Drain System MIFAB Series T1400 6in wide pre-sloped trench drain system. Polypropylene drain body with integral top frame and 1/4in per section bottom slope, anchor flange with slotted tabs every 10in for rebar tie down and leveling, grate lockdown assembly, body support legs, interlocking ends and radiused bottom. Standard with ANSI rated "Special Duty" lacquered ductile iron heel proof grates with a safe live load of over 10,000 lbs. (Note: Specify ductile iron frames for forklift applications).