Pyrex® Plain Watch Glass Beaker Covers

PYREX® round glass beaker cover watch glasses are designed to fit PYREX® beakers and all other brands of beakers. They possess high chemical durability, thus preventing contamination of solutions. They are molded to the same radius of curvature for convenient stacking. The heavy wall and uniform fire-polished edge provide mechanical strength. The outside diameter cannot be controlled within close limits and a slight degree of out-of-round can be expected to occur. Material: PYREX® Borosilicate Glass Code 7740. Top Style: Heavy Duty Rim. Available in all diameter sizes ranging from 65mm through 150mm.

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