Filtration unit Stericup® with MILLIPORE Express® PLUS (PES) membrane Pore...MILLIPORE Stericup vacuum filtr. system, PES membrane, sterile, 0. 22 m, 500 ml Sterile A combination of bottle top filter and collecting bottle. For routine sterile filtration of tissue culture media, sera, additives and other aqueous solutions. Ideal for use under laminar flow conditions thanks to its compact form. Stackable bottles. Low protein binding High flow speeds, short filtration times 73 mm membrane diameter 40 cm filtration surface Housing