Tedlar PVF Gas Sampling Bags with PTFE straight On/Off valve, 2L Back Catalog number: TDL31_2L Availability: In the manufacturer's stock Price on request - + Recommended 1232 BALLOONS FOR GAS SAMPLING, 2Liters Price on request U-COV35 O-Ring, low-emission, size 035,pk10 Price on request H3-AXAAC HiSorb probe, PDMS/DVB, inert, standard length, pk 6 Price on request