#9.5 Solid Stopper (SRS)
Our #9.5 Solid Rubber Stopper (SRS) is a solid pure white gum laboratory stopper with a top diameter of 1 13/16" and a bottom diameter of 1 1/2". This stopper does not have a hole drilled in it, which makes it the perfect stopper to use if fermentation has ceased or you are storing your clean and dried container.
Fits most 2000 mL Erlenmeyer flasks.
Also available as a #9.5 drilled rubber stopper (drs).