Cork Flask Support Rings 5 pack

Cork Flask Support Rings – 5 Pack provide a cushioned base for compatible round-bottom and other laboratory flasks when placed on a flat work surface. Available size variants are 80mm, 100mm, 120mm, and 150mm.

The cork ring helps keep rounded glassware from rolling while reducing direct contact between the flask and a hard benchtop. Select a ring diameter that supports the vessel securely without concentrating excessive force on a small area of the glass.

These laboratory flask support rings are intended as benchtop supports, not as clamps or load-rated structural supports. They do not replace appropriate stands, clamps, heating mantles, or other equipment required for an active laboratory setup.

Inspect both the cork ring and glassware before use. Replace rings that are cracked, heavily contaminated, charred, chemically degraded, or otherwise damaged. Cork is combustible; keep support rings away from open flame and surfaces hot enough to ignite or degrade the material.

When supporting glassware containing hazardous chemicals, hot liquids, or valuable samples, consider secondary containment and the stability of the complete setup. The current product information does not document chemical-resistance, temperature, or load ratings for the cork rings.

Browse our borosilicate laboratory flasks for related glassware.