Polytetrafluoroethylene PTFE Syringe Filter, 3um, 25mm, Double luer Lock, 20 Pack Female Luer Syringe to Syringe Transfer Joint, Not Sterile. Filter, Disc, Syringe, 0.2 Micron, Medstream®, Female/Male Luer . 0.2 micron disc filter, male/female luer locks, effective filtration area?2.8 cm, membrane pressure tested?75 psi.