Filter units with CN-membrane, Ø 50 mm, pore size 0.45 µm, 250 ml, 12 unit(s)Filter units with CN membrane, 50 mm, pore size 0. 45 m, 250 ml Sterile Triton free cellulose nitrate membrane (CN) with excellent wetting properties and high flow rates for aqueous solutions. For cold sterilisation, clear filtration, prefiltration and ultrafiltration of buffers, microbiological culture media and other aqueous solutions. Type: Green colour coding White membrane colour Filtration units made of PS Graduated filter upper sections and