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Pyrex® Watch Glasses, O.D. 90 mm, Corning (CAT#: STEM-L-4000-LKN)

Cat Number: STEM-L-4000-LKN

Model: 9985-90

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Description

These Pyrex® watch glasses are made of heavy-wall, borosilicate glass with fire-polished edge for durability. Glassed with 6 different O.D. are available. May be slightly out-of-round due to O.D. variability.