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 M-SPC05-250 Collar spacer, alum 5mm, for M-CTE250I,pk 4 Price on request U-HSVB-20 Replacement Vial Block, for HiSorb Agitator Price on request U-T5O3F-2S Ozone precursors/Freon cold trap Price on request