The AM-TANK 40 DEF is an innovative low-profile 40-gallon tank designed to fit under truck bed covers. This unique tank fits between bed wheel arches and under any type of tonneau cover, allowing drivers to save space and protect the tank and tools from weather conditions and theft. The AM-TANK 40 DEF ensures long product life, better management of truck bed space, and improved truck balance during transport. It provides a convenient portable refueling station for farm, construction, recreation, industrial, and fleet markets. The self-contained tank includes a 12-volt power source, a 13ft hose, and an automatic nozzle, making it easy to transport or leave in a convenient spot onsite. This tank is designed for Diesel Exhaust Fluid (DEF), ensuring the safe and efficient handling of your fuel needs.