A UWS transfer tank is the ideal way to transport non-flammable liquids and transfer them to other vehicles and equipment on the jobsite (not designed to be an auxiliary tank). This transfer tank is constructed from heavy-duty 0.125 in. thick aluminum for extra durability, and it features a commercial-grade vent cap for good ventilation. This combination transfer tank also has a built-in truck storage box, featuring our patented RigidCore foam-filled lid and stainless steel locking handles. Like all UWS tool boxes for trucks, this product is proudly assembled right here in the USA.