#3 Solid Rubber Stopper (SRS)
The #3 Solid Rubber Stopper (SRS) is a solid pure white gum laboratory stopper. The top diameter is 15/16" and the bottom diameter is 3/4". This stopper is solid and does not have a hole drilled in it. A perfect stopper to use if fermentation has ceased or you are storing your clean and dried container.
Also available as a #3 drilled rubber stopper (drs).