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 H4-AXABC HiSorb probe, DVB/CWR/PDMS, inert, short version, pk 6 Price on request RMK-0020 Routine Maintenance Kit: Tube conditioner (TC-20) Price on request M-DSK15-120 Spacer disc, alum, 1.5mm, for M-CTE120I,pk 24 Price on request