PYREX® Glass Straight Bore Stopcocks with [ST] Glass Stopper, Corning®

Corning® Pyrex® 4mm straight bore stopcock with solid glass stopper plug. Closely controlled grinding techniques allow this general use stopcock to be used at pressures down to 10{-4} torr (mm Hg) when correctly greased. Includes retaining clip. See S6400-2 & -4 (Corning 7680-2 & -4) for stopcock replacement plugs.

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