Connections Available. Double Luer Lock and Female Luer Lock/Male Luer Slip. PTFE Hydrophilic Syringe Filters, 0.45 um, 25mm, Luer-Lok/Luer Slip, Nonsterile, 100 per pack, SF17168. Regular Price $119.55 Price $103.95 As low as $93.56. Add to Cart. PTFE hydrophilic Syringe Filters, 0.45 um, 13mm, Nonsterile 100/pk, SF18099.