Available in a wide variety of materials, diameters, and in sterile and non-sterile options, these syringe filters provide quick, excellent microfiltration for use in environmental, biotechnology, food/beverage, agricultural and many other applications. PTFE Syringe Filters, 0.45 um, 4mm, Luer-Lok/Luer Slip, Nonsterile, 200 per pack, SF17505