polypropylene housing ptfe membrane filter 0.2 um Waters Acrodisc, Minispike Syringe Filter, PTFE, 13 mm, 0.2 µm, Non polar, This PTFE membrane is a good choice for use with aggresive organic solvents Acrodisc, Minispike Syringe Filter, PTFE, 13 mm, 0.2 µm, Non polar, 100/pk - WAT200556 : Waters My Account