This #10 drilled stopper is made of solid rubber with a pre-drilled hole in the center for a standard-sized airlock. Plug it in the mouth of your carboy or fermenter and insert the airlock. You’ll have an air-tight seal that minimizes the amount of oxygen that might interfere with your fermentation. For premium results with your homebrew, you need to keep oxygen away from your fragile fermentation.
Get your #10 drilled rubber stopper today!
For best results, measure the diameter of the mouth of your carboy or fermenter and compare to rubber stopper measurements to find a good fit.