25 mm vacuum filtration unit Incl. 15 ml funnel attachment funnel bottom section with glass frit, aluminium bracket and silicone stopper.Made of borosilicate glass according to ASTM E 438 Type I, Class A. For filtration of small volumes, e.g. in microbiology or particle analysis. For filter diameters of 25 mm. Autoclavable. Delivery incl. 15 ml funnel attachment, funnel bottom section with glass frit as filter support (porosity 40-60 µm), aluminium bracket and silicone stopper. Please order...