Flat extra wide fuel storage tank container double-walled XL for installing machine containers on the tank roof with extra-wide dimensions. The extra-wide (3.000 mm) double-walled, extra-flat steel fuel storage tank container for storing diesel fuels is intended for supplying diesel generators. This storage tank container is equipped with a heavy container frame, which is used to accommodate an extra-wide machine housing on the storage tank container. This enables space-saving overall installations. The KCD-FL-XL offers a compact design and allows for quick system assembly on site. The service section with dome entry, connection flanges with 2" sleeves is arranged outside the ISO container frame. This is easy to assemble and service and makes planning the entire system simple. In addition to the hood element, a Krampitz fuel cleaning system and fuel care system (KRP) can be installed in the weatherproof housing on the service section if required.