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
4 Pieces Fermentation Airlock Brewing Airlock Plastic Fermentation Valve Bubbler Airlocks for Homebrew Beer Fermentation Wine Making Home Brewing
Brewing Bubbler Airlock For Home Brew Beer And Wine Making - Pack of 4 Airlocks
2pcs Fermentation Airlock, Brewing Airlock Plastic, Fermentation Valve Bubbler Airlocks, Exhaust Valve Beer Making Vent Air Lock with Cap Reusable Wine Fermentations
