Silicone Stoppers For Carboys

Silicone is highly stable, making for a long lasting Bung. You don't have to worry about cracking, chafing, mold or mildew. Small silicone stoppers are perfect for glass carboys.

Available SOLID, BORED or

Fermenting/Ventilating Bung - Fits 3, 5, 6, and 6.5 gallon glass carboys and acts as both a stopper and an airlock. Its five vents and pliable seal allow CO2 to escape but prevents entry of oxygen and airborne contaiminants. No more suckback of liquid from the airlock; great for extended fermentations where CO2 production is slight.