Multi-layer gas sampling bags, PP valve (4.76mm), 1L Back Catalog number: HEDMBT71_1L Availability: In the manufacturer's stock Price on request - + Recommended H2-AXAAC HiSorb probe, PDMS/CWR, inert, standard length, pk 6 Price on request HEDNDV31_50L New Devex Sampling Bag with PTFE Valve & Septum Fitting, 50L Price on request OST-201-3424 Tube gas sampling 150ml nozzle (GL14), septum Price on request