For aqueous and organic solvent filtration, produced from borosilicate glass with a choice between two different support screens. The glass frit support ensures uniform distribution of retained particles and is therefore recommended, when the residue on the filter surface is of interest. The PTEE-coated support is easy to clean and is therefore recommended when the filtrate is required or when liquids difficult to remove from glass frits must be examined. Borosilicate glass material and chemically resistant to most aqueous and solvent solutions.