Easy-to-use sterile and disposable In-Line Filters contain a hydrophobic PTFE membrane. Ideal for confining and isolating infectious and hazardous material in vacuum systems and venting applications. Pre-sterilized using gamma irradiation and individually wrapped, disposable. High-quality PTFE hydrophobic membrane is ultrasonically welded and overmolded polypropylene housing for superior leak-free performance. Stepped barb ports from 1/4" to 3/8" with reinforced port base for strength. Molded indication of flow "IN" port. PTFE membranes are inherently hydrophobic; ideal for the filtration of nonpolar liquids and gases. Resistant to solvents as well as acids or bases. Can be made hydrophilic by flushing with alcohol, followed by water. Used for filtering and de-gassing chromatography solvents. Excellent chemical compatibility for filtering harsh chemicals that destroy other membrane materials. Moisture barrier for venting applications and vacuum pump line protection. Ideal for aerosol blocking in venting and vacuum pump exhausting applications. Filter viscous organic-based HPLC samples in larger volumes than syringe filters will permit. After pre-wetting with alcohol, may be used for fine particle removal of aqueous and mild organic solutions in Ion Chromatography.