Kontes* Filtration Cap System

Specially designed to filter HPLC mobile phase directly into the reservoir using 47 mm membrane filters. Optional conversion base allows the use of 90 mm membrane filters. Borosilicate glass and PTFE construction gives excellent chemical resistance to all HPLC mobile phases. Cap body is constructed from glass-filled PTFE and is supplied with a TFE/propylene O-ring. In-line filtration with solvent pickup adapter that eliminates traditional pour-and-wait filtration. 1/4 in. PFA (perfluoroalkoxy resin) hose barb for easy connection to a vacuum source. Vacuum degassing is accomplished by closing the Hi-Vac* valve on the solvent pickup adapter. Supplied with filtration cap, standard solvent pickup adapter and conical bottom reservoir.