Teffil ptfe membrane filter 0.22 um for hospitals-Voa Vial . standard grade 0.22 um ptfe filter for air-Voa Vial Supplier 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, SF17375 Regular Price: $140.30 Price $126.88 date: 2021-10-21 . Hot selling ptfe membrane filter 0.22 um Teffil-Voa Vial