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Pear shaped flasks for your lab's boiling, distilling, and evaporating needs are supplied at Avantor. Borosilicate glass flasks are offered with heavy wall construction and may be uncoated or polycoated for durability. Outer standard taper joints may be ground or tooled for strength and stability. Select a single vertical neck or two necks, one vertical and one angled. A variety of capacities including microscale options are offered, as well models for use in rotary evaporators. Purchase pear shaped flasks individually.