Dee Zee Combo Tanks - The convenience of a utility chest connected to a liquid transfer tank. Low profile design to fit under most tonneau covers. Constructed of Brite-Tread aluminum. Black powder coat finish. Radius curve design eliminates key weld pressure points. Feature 3 stability baffles, lockable cap, 3/8" drainage plug, and venting coupler. Intended for private use (non-commercial). Not designed for use as an auxiliary fuel system. Not for use with gasoline. Does not meet title 49 of the United Stated Federal Registry governing transportation.