Tedlar PVF Gas Sampling Bag with PTFE dual-valve, 2L Back Catalog number: TDL32_2L Availability: In the manufacturer's stock Price on request - + Recommended 1230 BALLOONS FOR GAS SAMPLING, 1Liter Price on request U-HSVB-20 Replacement Vial Block, for HiSorb Agitator Price on request DEV31_5L DEVEX gas sampling bag, stopcock straight valve, 5L Price on request