plastic 0.22 um PTFE filter Restek-Analytical Testing Vials Sep 28, 2021 · Leading Supplier of PTFE Syringe Filter,Welcome to Inquiry Membrane Filters, PTFE - Tisch Scientific PTFE Membrane Filters, 0.22 um, 25mm, Nonsterile, with PP substrate (Meets the requirements of USP Plastics Class VI) 200 per pack, SF17375 Regular Price: $140.30 Price .