Oct 11, 2021 · Discounting PTFE 0.2 micron filter Porex Porex 0.22 um ptfe syringe filter for sterilization-Voa Whatman Puradisc 25 mm PTFE Syringe Filters, 0.2 µm, 1000. PTFE Syringe Filters, 0.22 um, 25mm, Luer-Lok/Luer Slip, Nonsterile, 100 per pack, SF14468 Regular Price: $128.55 Price $93.59 As low as: $84.23 Description Whatman 25 mm