Pyrex® Pear Shape Boiling Flasks with 14/20 [ST] Joint, Corning 4315

PYREX® pear shape boiling flasks have full length outer 14/20 Standard Taper joints and are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for greater shock resistance. Their excellent chemical durability results in contamination-free results and long life under the toughest lab conditions. The normal working temperature for PYREX® pear shape boiling flasks is 230°C

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