PYREX® borosilicate glass.

• Very good chemical resistance
• High temperature resistance
• Minimal thermal expansion, giving relatively high resistance to temperature changes

Flasks have a beaded top that provides an excellent fit for rubber stoppers. Graduated to show approximate volume.

The heavy-duty rim flange is ideal for supporting Buchner funnels. It includes a side arm for attaching rubber tubing. Extra-large marking spot for easy identifications.