Control the flow of contents better than with wide-mouth bottles. Use these puncture-resistant bottles as inner packaging components to safely ship hazardous liquids.

Tapered from a wide, stable base to a narrow neck, these borosilicate Erlenmeyer flasks reduce evaporation and direct vapors for easier collection. Borosilicate glass resists thermal shock and chemical attack for laboratory heating, mixing, and storage. A write-on label area lets you mark contents directly on the flask without adhesive labels that can degrade in chemical environments.