Polyester gas sampling bag with PTFE dual-valve, 2L Back Catalog number: POL32_2L Availability: In the manufacturer's stock Price on request - + Recommended C-VAC-PIN Vacuum closure Pin Price on request U-T4WMT-2S Water Management, ethane - C20, cold trap Price on request U-COV201 O-ring, Injector HiSorb & HiSorb Storage, pk 10 Price on request