Tisch Scientific Nylon Syringe Filter, 0.22 µm, 25 mm, Luer-Lok/Luer Slip, Non-Sterile, 100 Pack, SF13829. Regular Price $101.54 Price $88.30 As low as $79.47. Add to Cart. Add to Wish List. PTFE Syringe Filters, 0.22 um, 25mm, Double Luer Lock, PP Housing, Nonsterile, 100 per pack, SPEC16251.