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> New gas collecting tube, 250ML pyrex 9500 dual stopcock
New gas collecting tube, 250ML pyrex 9500 dual stopcock
New and unused, top-quality, Pyrex brand glassware, N.O.S. (new old stock). The stopcock bore paper still remains, with the retaining clips unattached. No chips or cracks. All lines, spots, etc., seen in the pic are reflection. These are now becoming difficult to find, as Corning has discontinued them.
The fairly large stopcock plugs appear to have a 3mm bore. The outlet tubes have a O.D. of ~10mm, which widens out at the bump to ~13.5mm.
Useful not only as a general laboratory tool, but also in classroom demonstrations.
9500 (Currently sold by Wilmad-Labglass as #C-9500)
