... using the unit to increase the purity of nitrogen in the tire, good value. Nitrogen Tire Inflator:FEATURES1, 1No*10m/32.8ft standard hose ... , 2 Pre-filters5, 50L/13.2gal(us) internal nitrogen storage tank6, Autmatic inflation.7, Automatic zero drift adjustment8, Remain at last setting ... 1PSI/0.1bar/5kPaN.W./G.W.87kg/104kgDimensions1255x720x435mmPacking size1380x730x510mm Nitrogen Tire Inflator