Filter Media: PES/Nylon66/PTFE/MCE/PVDF. Pore Size, μm: 0.1, 0.22, 0.45, 1.0. Diameter: 13 mm, 20 mm, 25 mm, 33 mm. Feature & Benefit. 1) Low extractables and particle shedding. 2) Handy and readily available. 3) Easy to use. 4) Economical and disposable. 5) Available in non-sterile and sterile version.