Spare solid glass stopcock key, NS 14,5, 2pc/pk Back Catalog number: OST-227-3141 Availability: In the manufacturer's stock Price on request - + Recommended M-DSKPF Sample disc, 1.0mm thickness, PTFE,pk 6 Price on request H2-AXAAC HiSorb probe, PDMS/CWR, inert, standard length, pk 6 Price on request HEDTDL71_6L Tedlar PVF Gas Sampling Bag with PP valve, 6L, 3/16'' OD (4.76mm) Price on request