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 C-MCTEKIT-120 Low Temperature MCTE Starter Kit Price on request T-11OP Ozone precursors trap, TT24-7 Price on request M-MCHOR O-Ring, micro-chamber pan seal, for M-CTE120I,pk 6 Price on request