Speical order tanks made in Germany and shipped to our warehouse or directly to you depending on the size of the order. Speidel offers these tanks as their most popular configurations which means they come with the most common manways, cooling jackets, top hatches where appropriate and accessory packages for a give style of tank. Because these tanks are preconfigured the drawings are already done which makes ordering simpler (when compared with our custom tank section where every option is offered). An additional advantage is that the drawings are already done which shaves a month off the delivery times. By comparison if you choose to design a tank with your own selection of accessories Speidel will make a special drawing that they send to us and then we send that to you to sign off on. At any point don't hesitate to call in and talk with one of our tank experts.