#8.5 Solid Rubber Stopper (SRS)
Our #8.5 Solid Rubber Stopper (SRS) is made of a solid pure white gum. It has a top diameter measuring 1 11/16" and a bottom diameter of 1 7/16". It is solid, so it is the perfect stopper to use if fermentation has ceased or you are storing your clean and dried container.
The #8.5 rubber stopper is also available as a #8.5 Drilled Rubber Stopper (DRS).