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#13 Solid Rubber Stopper (SRS)


Our#13 Solid Rubber Stopper (SRS) is a pure white gum laboratory stopper. The top diameter is 2 11/16" and the bottom diameter is 2 5/16". It is solid so it is perfect for stopping up a fermentor after fermentation has ceased or when you are storing a clean and dry fermenter.

This #13 rubber stopper is also available as a #13 Drilled Rubber Stopper (DRS).