Syringe Millex-FG Filter, 0.20 µm, Fluoropore (PTFE) 13 mm, non-sterile / PK 100 Catalogue number: SLFGX13TL This 13 mm syringe filter with a Hydrophobic PTFE membrane, for non-sterile filtration, has a 0.2 µm pore size used in preparation of organic solutions prior to chromatography or other instrument analyses.