This 10 Gal. capacity tank makes it easy to carry and dispense DEF fluid along with diesel fuel. The JDI-DEF10 Diesel Exhaust Fluid tank is molded out of rugged polytethylene and is designed to fit in storage compartment of the106 Gal. carry tank. It is a self-contained tank that includes a separate 12-Volt pump, dispensing hose and nozzle. It is powered by the same 12-Volt source as the carry tank with a separate power plug. No additional power cables are required.