Item #: KEYSTONE-WOODEN
Prevent your cask ale from spilling out the bung hole by using this plastic keystone cask bung.
It inserts easily into the bung hole on the crown of your pin cask or firkin beer cask. This sturdy plastic keystone fits snugly in the bung hole of your cask and creates a tight seal so you don’t lose any real ale during transport.
The keystone bung hole of your cask is essentially the same as its tap. If you don’t plug it up, the ale will flow, so add this plastic keystone cask part to prevent unwanted beer spills.
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