Fastrack 3 Piece Airlock for Fermentation | Hydrolocks for Fermenting Wine and Beer with Drilled Rubber Stopper | Durable Carboy Bung with transparent Airlock Set used for Fermentation | Set of 3
Basic plastic 3 piece airlock. Cylinder Lock is a type of airlock which serves one purpose: to let fermentation gas out and to keep air from reaching the beer or wine. Very durable and easy to clean. Remove top and fill to line with sanitizer solution.