luer lock ptfe 0.22 micron filter Corning Amazon.com: 0.22 micron filter Simsii Syringe Filter, Nylon Membrane,Sterile, Diameter 25mm, Micron Pore Size 0.22 Micron,Disc Shape Blue Corded,PP Housing,Luer Lock,Pack of 50, 5.0 out of 5 stars 1 $58.50 $ 58 . 50 ($11.70/10 Items)