4 x Bored Rubber Bungs to take bubbler airlocks by Almost Off Grid. Traditional rubber stoppers for use in homebrew. Perfect for making wine, mead, cider and beer. Prebored with a hole into which fits the stem of a homebrew airlock to create a seal. Pack includes 4 x rubber bungs.
Suitable for use with standard 1 gallon glass demijohns.
Bung Dimensions:
Top: 31mm
Base: 27mm