Description
Protect your fermentation from oxygen and contaminants with the Twin Bubble Airlock & Bung Set. This essential hardware package includes a high-clarity S-shaped twin-bubble airlock and a #6.5 drilled rubber stopper, specifically sized to fit most standard 3, 5, 6, and 6.5-gallon glass and PET carboys. The “S-shape” design is highly effective at preventing “suck-back,” making it the ideal choice for secondary fermentation and long-term aging where small pressure changes could otherwise pull sanitizer into your beer or wine.
Brewery Pro-Tip: To ensures a 100% airtight seal, always ensures both the rubber stopper and the carboy neck are dry before insertion. Fill the airlock to the marked line with a no-rinse sanitizer like Star San or high-proof neutral spirits. Spirits are preferred for long-term aging as they will not grow mold. The glass-clear plastic allows for easy visual monitoring of CO2 activity.
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