PYREX® Ribbed Watch Glass/Beaker Cover, Corning

Designed for use as a beaker cover. Ribs are molded into the glass. Permits reflux of digestate and escape of excess vapor. Eliminates risk of contamination from dropped hooks or props.

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

Certifications: Meets EPA requirements for methods 3005, 3010 and 3020.