#7 Solid Rubber Stopper (SRS)


The #7 Solid Rubber Stopper (SRS) is a solid pure white gum laboratory stopper. The top diameter is 1 7/16" and the bottom diameter is 1 3/16". 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. Fits most 356, and 6.5 gallon glass carboys. Sits higher than the #6.5 stopper.

Also available as a #7 drilled rubber stopper (drs).