Corning® PYREX® Round-Bottom Boiling Flask
$65.27 
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SKU
1403039
Product Details
4321-1L CORNING FLASK, BOILING, 1000ML, 29/42 JOINT (407730)
Boiling flasks with full length [ST] outer joints are manufactured from borosilicate glass.
Normal working temperature is 230 °C (446 °F). Heavy wall flasks feature walls that are 25-30% thicker than standard walls, for increased mechanical strength.
Certifications: Flasks 89090-694 and 89090-884 reference ASTM E123.