Homebrew Guys Fermentation Grommets Pack of 12. Food Grade BPA-Free White Silicone Rubber Complete with 12 Stoppers. Best for Airlocks, Fermenting in Jars and Buckets. 3/8″ Center for 1/2″ hole

PREMIUM QUALITY , durable and hygienic grommets complete with stoppers.Great for airlocks to vent off Carbon Dioxide and keep Oxygen out from spoiling your food.Suitable for 1/2″ drilled holes
MULTIPLE USES – Whether you are using them for making alcoholic beverages, making Kimchi, Sauerkraut or your own vinegar, you will love these.
EASY TO CLEAN – Simply wash them in warm soapy water, rinse and dry


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