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PYREX® Ribbed Watch Glass/Beaker Cover, Corning®

Supplier: CORNING

9990-75 9990-125 9990-100
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.

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



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Diameter Supplier No. Catalog Number Unit List Price Quantity
100 mm (315/16") 9990-100 9990-100-G Case of 12 Retrieving
125 mm (415/16") 9990-125 9990-125-G Case of 12 Retrieving
75 mm (3") 9990-75 9990-75-G Case of 12 Retrieving
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