Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Back Catalog number: HEDTDL71_6L Availability: In the manufacturer's stock Price on request - + Recommended H4-AXAAC HiSorb probe, DVB/CWR/PDMS, inert, standard length, pk 6 Price on request M-MCHOR250 O-Ring, micro-chamber pan seal,pk 4 Price on request HEDFEP32_5L FEP gas sampling bag with PTFE dual-valve, 5L Price on request