#6 1/2" Rubber Stopper - Drilled

3 Photo of #6 1/2 inch Rubber Stopper - Drilled
This tapered #6 1/2" Rubber Stopper is the perfect size for sealing 6.0 and 6.5 gallon glass carboys. It has a 9 mm hole in the center, for use with an airlock or tubing.