Small Drilled Universal Carboy Stopper
The Small Drilled Universal Carboy Stopper creates a tight, reliable seal for most 3, 5, 6, and 6.5-gallon glass carboys while allowing CO₂ to escape safely through a standard airlock. Its long, tapered silicone body forms a secure, leak-free fit, and the flanged lip prevents the stopper from slipping into the neck of the carboy during active fermentation.
Built for brewers who need dependable airflow control and contamination protection, this stopper supports clean, stable fermentation across beer, wine, cider, and mead batches. The drilled center hole is sized for standard airlocks, ensuring consistent gas release without compromising the seal. Its universal profile makes it compatible with most traditional glass carboys used in homebrewing, though it is not suitable for 1-gallon vessels or The Catalyst system.
Constructed from BPA-free, food-grade silicone, the stopper is odor-resistant, easy to sanitize, and durable enough for repeated use. Its elasticity allows it to form a snug seal even after multiple fermentation cycles, helping maintain a controlled environment during primary or secondary fermentation.
Widely used by homebrewers for its secure fit and consistent performance, this stopper offers a simple, effective solution for reliable carboy sealing.
Description
The Small Drilled Universal Carboy Stopper creates a tight, reliable seal for most 3, 5, 6, and 6.5-gallon glass carboys while allowing CO₂ to escape safely through a standard airlock. Its long, tapered silicone body forms a secure, leak-free fit, and the flanged lip prevents the stopper from slipping into the neck of the carboy during active fermentation.
Built for brewers who need dependable airflow control and contamination protection, this stopper supports clean, stable fermentation across beer, wine, cider, and mead batches. The drilled center hole is sized for standard airlocks, ensuring consistent gas release without compromising the seal. Its universal profile makes it compatible with most traditional glass carboys used in homebrewing, though it is not suitable for 1-gallon vessels or The Catalyst system.
Constructed from BPA-free, food-grade silicone, the stopper is odor-resistant, easy to sanitize, and durable enough for repeated use. Its elasticity allows it to form a snug seal even after multiple fermentation cycles, helping maintain a controlled environment during primary or secondary fermentation.
Widely used by homebrewers for its secure fit and consistent performance, this stopper offers a simple, effective solution for reliable carboy sealing.
