Pall Acrodisc™ Syringe Filters with PTFE Membrane and Fisher Scientific - Pall Universal membrane syringe filters for all of your analytical filtration requirements. Shop Pall Acrodisc™ Syringe Filters with PTFE Membrane Pall Acrodisc™ Syringe Filters with PTFE Membrane and Minispike Outlet 0.45 μm; 100/Pk.