Great accessory that will out last a lifetime of trucks. The Fuel Box, made in the USA automatically transfers fuel from the auxiliary tank to the factory tank. You can haul more fuel to get you to the next better price pump. Also The Fuel Box can transfer fuel to your machinery. Exclusive feature, tool box and fuel tank bolt together so your tools aren't banging on the fuel tank and they can be worked on separately. They have tanks that fit trucks with tonneau covers, goosenecks, 5th wheels. Fits all trucks, short beds, long beds, bed rail level or under. Professional TIG welders make welds that penetrate, looks great so your truck can last from truck to truck for decades. The fuel system plugs into your trucks OBD ll computer system so no wiring. Just plug it in and go. All fuel tanks are leak tested at the factory. Any kind of tool box you can imagine, pork chop, cross-over, ball-bearing sliding trays and more. They can spray bedliner inside and out the tool box and fuel tank. That insulates the tanks and tools. Keeps your tools clean and cooler. Commercial T-handles, thicker lid rubber gasket. Tool box opens from either side. Great combination tool and fuel tanks. Insulated dog box. https://thefuelbox.com/ (559) 739-0818 #MrTruckReviews