Filtration –Captiva Filter Vials 13 PP prefilter Vent Fill line Part Number Description 5191-5933 PTFE filter vial, 0.45 µm, 100/pk 5191-5934 PTFE filter vial, 0.20 µm, 100/pk 5191-5935 Nylon filter vial, 0.45 µm, 100/pk 5191-5936 Nylon filter vial, 0.20 µm, 100/pk 5191-5939 RC filter vial, 0.45 µm, 100/pk 5191-5940 RC filter vial, 0.20