Drilled gum rubber stopper. Used to provide a positive seal; works well with standard beer bottles. Drilled hole is compatible with standard airlocks.
Top Diameter: 0.787"
Bottom Diameter: 0.63"
- Details & Instructions
Best Fit Beer bottle opening Bottom Diam. 5/8"
5.0 / 5.03 ReviewsSimply WorksThis size stopper works great for very small yeast starters or when washing yeast. Fits a standard beer bottle and stopper.November 14, 2012Fits a standard beer bottleThis size stopper fits perfectly inside the neck of a standard beer bottle. I used this along with a racking cane to make a homemade bottle filler that connects with a picnic tap on my keg setup.December 22, 2012
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