Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 5L Back Catalog number: HEDTDL31_5L Availability: In the manufacturer's stock Price on request - + Recommended H1-AXAAC HiSorb probe, inert, standard, pk/6 Price on request T-12AM Focusing trap, Air Monitoring, for TT24-7 Price on request M-TICAP Tube interface cap for removable lid,pk 6 Price on request