Nylon Syringe Filters, 0.45 um, 13mm, Luer-Lok/Luer Slip, Nonsterile, 100 per pack, SF13902. Regular Price $72.84 Price $64.39 As low as $57.95. Add to Cart. Add to Wish List. Polypropylene Syringe Filters, 0.45 um, 25mm, Luer-Lok/Luer Slip, Nonsterile, 100 per pack, SF14691.