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 HEDMBT71_1L Multi-layer gas sampling bags, PP valve (4.76mm), 1L Price on request 1233 BALLOONS FOR GAS SAMPLING, 4Liters Price on request