Recommended at race. 8mm Snake Nipple Adjustable. Preset of 0.25 BAR (3.6 PSI). Fuel filter in paper. Ensures a steady flow of fuel to the carburettor, which is important in order to achieve even engine speed and lower fuel consumption. In principle, it is necessary to use a fuel pump with a higher pressure than 0.25 bar on most carburettors. Aluminum cup approved for competitive use. Mounting brackets and screws included.