DURAN®-vacuum filtration unit, 1000 ml / 250 ml complete, 1 unit(s)DURAN vacuum filtration unit, 1000 ml 250 ml complete Material: borosilicate glass, PTFE. Autoclavable: yes. For coarse and membrane filtration, retention analysis, particle tests and microbiology, as well as for filtration of alkali and aggressive media. Parts in contact with media are made of glass and PTFE, therefore are suitable for universal use, biologically inert and corrosion resistant Scaled reservoir for easier metering and evaluation Plates