#11.5 Solid Rubber Stopper (SRS)

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The #11.5 Solid Rubber Stopper (SRS) is a pure white gum laboratory stopper. The top diameter is 2.5" and the bottom diameter is 2". This solid stopper is great for using when ferm entation has ceased or if you are storing a clean and dry fermenter. The 11.5 rubber stopper also comes as a #11.5 Drilled Rubber Stopper (DRS). Show more