Home » News » HPLC Syringe Filter » Iso9001 sterile hplc filters for sale sterile ptfe hplc filters for sale-Chromatography Consumables sterile PTFE membrane filter 0.22 um for coal-Analytical Oct 21, 2021 · PTFE Membrane Filters, 0.22 um, 25mm, Nonsterile, with PP substrate (Meets the requirements of USP Plastics Class VI) 200 per pack