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 T-3GBGE CW agents cold trap, TT24-7 Price on request T-11OP Ozone precursors trap, TT24-7 Price on request H1-AXAAC HiSorb probe, inert, standard, pk/6 Price on request