The Drierite Drying Tube for air and gases can be used for small scale laboratory applications such as vent drier on reagent bottles, reaction apparatus, instrument compartment, sample preparation, gravimetric determination of water vapor, drying of gases for purging and blanketing of moisture sensitive materials.SPECIFICATIONS:Construction: Tube is polycarbonate. End caps are molded polypropylene. 20 Micron polypropylene filter in each end.Dimensions: 3/4"" o.d. x 6"" (8"" overall) lengthConnections: Hose barbs for 1/4"" to 3/8"" i.d. flexible tubingDesiccant: 30 grams Indicating DRIERITEWater capacity: 3 gramsMaximum flow rate: 300 cubic centimeters per minutePressure Rating: Only atmospheric pressure