Popular luer lock PTFE membrane filter online-Analytical . Dec 21, 2021 · Syringe Filters Available in standard Luer Lock/Luer Slip format or in Double Luer Lock, Tisch Scientific supplies various syringe filter combinations with membrane materials such as Cellulose Acetate, Glass Fiber, PTFE, Nylon, Polypropylene, PES, PVDF, and much more.