Rubber Bung - Drilled Hole for Airlock - To Fit 1 Gallon Glass DemiJohn
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This Rubber Bung has a hole bored through it so it can be used with an airlock.
The bung is tapered so can be used to fit a range of brewing vessels including Demi-John, Carboy & Wide Neck Wine Fermenter.
Dimensions:
Height: 31mm
Narrow end: 28mm diameter
Wide End: 31mm diameter
Centre Hole: 6mm diameter