Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Back Catalog number: HEDTDL31_2L 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 U-ULKIT TD automation/ULTRA-xr starter kit Price on request 1235 BALLOONS FOR GAS SAMPLING, 8Liters Price on request