


Sartolab® RF 50 vacuum filtration units are single-use units designed for the filtration of sample volumes of up to 50 mL. They are available either with an asymmetric 0.22 or 0.45 µm polyethersulfone membrane that provides the fastest flow rates and ensures lowest protein binding as well as low extractables. The 0.22 µm version is ideal for sterile filtration of cell cultures, buffers and aqueous solutions; the 0.45 µm for clarification.