Simplify barrel fermentation with a silicone bung that works as both a stopper and an airlock. The CellarScience Universal Breathable Bung for wine barrels vents CO₂ through its flapper design while maintaining a seal against incoming oxygen.
Designed for alcoholic or malolactic fermentation in barrels and tanks, its raised ridge makes removal easier when it is time to access your vessel.
-
Material: Silicone
-
Function: Combined stopper and breathable airlock
-
Barrel fit: 30- and 60-gallon barrels and PET Carboys
-
Additional fit: Lid openings on most variable-volume tanks and 2-inch tri-clamp ferrules
-
Replaces stopper sizes: #10, #11, and #12
-
Stopper measurements: 1.65 × 2.19 inches (42 × 55.5 mm)
-
Flapper stem: Protrudes approximately 2.5 inches for assembly
- Raised ridge for easier removal
Includes: One wine-barrel bung with flapper stopper. Check your vessel opening against the listed dimensions before ordering.
