Sartorius Minisart™ SRP Syringe Filters are single-use filtration units with a chemically resistant PTFE membrane and male luer slip outlet. Available in 4, 15 and 25mm diameter filters with 0.2 or 0.45 μm pores. Simple, rapid and reliable ultracleaning . Feature a coating-free, hydrophobic PTFE membrane that is chemically inert