Kimble® Kontes® ULTRA-WARE® HPLC Filtration Cap Systems

These ULTRA-WARE® HPLC filtration cap system are specially designed to filter HPLC mobile phase directly into the reservoir using 47mm membrane filters. The optional conversion base allows the use of 90mm membrane filters for large volume, preparative scale filtration or filtering mobile phase with high particulate loads. The borosilicate glass and PTFE construction gives excellent chemical resistance to all HPLC mobile phases. The cap body is constructed from glass-filled PTFE and is supplied with a tetrafluoroethylene/propylene O-ring. In-line filtration with solvent pickup adapter eliminates traditional pour-and-wait filtration. The 1/4-inch perfluoroalkoxy resin hose barb allows for easy connection to a vacuum source. Vacuum degassing is accomplished by closing the HI-VAC® valve on the solvent pickup adapter. Supplied with a Filtration Cap (with coarse porosity glass support frit), standard Solvent Pickup Adapter and Conical Bottom Reservoir. Patent No. 5,397,467. Recommended for most solvents used for HPLC mobile phase. O-rings in the solvent pickup adapter must be changed when using tetrahydrofuran (THF) or other aggressive organic solutions.