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-COV03 O-Ring, Size 003, pk 10 Price on request H4-AXABC HiSorb probe, DVB/CWR/PDMS, inert, short version, pk 6 Price on request U-COV35 O-Ring, low-emission, size 035,pk10 Price on request