Description
The Chemglass CG-3018-05 is a heavy-duty Pennyhead Stopper specifically designed for use with large laboratory flasks. This model features a #22 Standard Taper joint size and a hollow construction, which helps reduce the overall weight of the stopper while maintaining its structural integrity. The flat pennyhead top provides a secure grip for the user, making it easier to insert and remove the stopper, especially when wearing lab gloves or if the joint has become slightly frozen. “Flask length” stoppers are specifically proportioned to provide the maximum sealing surface area within the neck of a boiling or volumetric flask, ensuring a leak-tight seal for volatile solvents.
Used, in great condition.
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