The FuelPro 990 fuel trailer from FuelPro Trailers, Sandusky, Ohio, features a 990-gal. capacity as well as additional compartments for tools, diesel exhaust fluid (DEF), grease and more. The chassis is constructed from 6-in. C-channel. The tank features 7-gauge steel which is double seam welded. Each tank features internal fuel surge baffles and cross bracing, a fuel shutoff valve, a lockable vented fill cap, a tank pressure relief vent and an at-a-glance fuel gauge.