luer lock GH Polypro membrane maximum operating temperature 55 C luer lock ptfe membrane Teffil-PTFE Membrane Filter luer lock ptfe membrane Teffil luer-lock filter | Sigma-Aldrich CLS3565. aseptic transfer cap for 500 mL plastic spinner flasks, 1/8" dip tube, 0.2 μm vent, male luer lock, sterile, 2/cs. pricing.