Nylon Syringe Filters, 0.22 um, 13mm, Luer-Lok/Luer Slip, Nonsterile, 100 per pack, SF14478. Regular Price $78.49 Price $68.25 As low as $61.43. Add to Cart. PTFE Syringe Filters, 0.22 um, 13mm, Luer-Lok/Luer Slip, Nonsterile, 100 per pack, SF14466. Regular Price $100.73 Price $87.59 As low as $78.83.