The unique design maximizes shelf space used for storing and dispensing frequently used liquids. The spigot threads into the bottle with a gasket seal. It operates smoothly, requiring only a 1/4" turn from the closed position to full open. The bottle has a 43mm I.D. neck for rapid filling and features a leak-proof seal plug and screw cap. (Note: spigot has a rubber component that is not compatible with acetone and organic solvents.) The spigot extends 58mm (2.3") from the bottle. Flat rectangular bottles store on a shelf like books in a library. Dispensing spigot has 9.5mm (3/8") I.D. outlet to accept tubing. Graduated in liters. Two molded in handles for safe transport.