DURAN®-vacuum filtration unit, 2000 ml / 500 ml with scale, 1 unit(s)DURAN vacuum filtration unit, 2000 ml 500 ml with scale 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