Sartolab™ RF with polyethersulfone (PES) is designed for cell culture media and other solutions. Type C8 is a bottle top unit including receiver flask (RF) with a pore size of 0.1 μm and a volume of 1000 ml. It can be used for sterile filtration and mycoplasma removal. Version E contains 12 units which are individually packed and sterilized by ethylene oxide (EO).