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 U-COV100 O-Ring, low-emission, size 010, pk/100 Price on request U-HSVB-20 Replacement Vial Block, for HiSorb Agitator Price on request C-HSPVLP-6 HiSorb Septum Plug, pk 6 Price on request