Fuelworx gas cans were designed to provide solutions to all complaints associated with gas cans on the market today. We have the fastest pouring Spill-Proof nozzle with a push button vent. The vent allows speed control to fill small tanks slow and big tanks fast. Fuelworx cans pour up to 5 gal/min, as compared to other cans at 1.5 to 2 gal/min. The spout on our can has an automatic shut off, preventing spills on small tanks, such as weed eaters, blowers, etc. The back handle on all Fuelworx cans makes filling and storage a breeze. The cans stack and lock together for organization and stability. The base of the can was built with the widest base and lowest center of gravity to reduce the chance of tipping over (safer transportation). Fuelworx gasoline cans are tested and certified to ASTM F-85299 Standard Specification for Portable Gasoline Containers for consumer use and our diesel & kerosene cans are tested and certified to ASTM F-97602 Standard Specification for portable kerosene and diesel containers for consumer use.