Oct 29, 2021 · 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 Puradisc Filters are produced from pigment-free polycarbonate with. date: 2021-10-29.