These 90mm diameter PYREX® watch glasses are designed to fit 400mL PYREX® 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.
Dia. (in./mm): 3.5/90
Fits Beaker Size (mL): 400