They also fit standard bored cork and rubber bungs. Airlocks let CO² out without letting contamination in.
Brewing Bubbler Airlocks x 5 Bored Cork Bungs x 5 Solid Cork Bungs x 5
Brewing Bubbler Airlocks Bored Rubber Bungs x 3 Demijohn Homebrew Wine Beer
Brewing Bubbler Airlock For Home Brew Beer And Wine Making - Pack of 4 Airlocks
6 x Bubbler Airlocks & 6 x Bored Rubber DJ Bungs
2 x Bubbler Airlocks & 2 x Bored Rubber DJ Bungs
