The Drierite Gas Purifier is specially designed for gas chromatography and other applications requiring dry, pure gas. It will dry, purify, and filter gases used for chromatography and spectrometry. The purifier is filled with Indicating Drierite and 5A Molecular Sieves for the removal of moisture, impurities, and particulates from gas lines. It is easy to attach using the 1/8" SS compression type tube fittings common to most laboratory instruments. This unit is also available filled with Indicating Drierite only for applications that require only drying and filtering. Refillable upon exhaustion with refill kit Stock No. 27069. Note: Do not use this plastic column in the presence of vapors or liquids containing phosphate esters, synthetic lubricants, hydrocarbon solvents, methanol, acetone, lacquer solvents, or other organics.