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Quantity
1
Description
This #7.5 Drilled Rubber Stopper (DRS) has a top diameter of 1 1/2", a bottom diameter of 1 1/4", and has a 3/8" hole drilled in the center, the perfect size for an airlock.
The #7.5 rubber stopper fits most 1000 ml Erlenmeyer Flasks and is...