Rubber Drilled Stopper (No. 9)

Drilled No. 9 Rubber Stopper

  • $4.79

The #9 Rubber Stopper with a 3/8" drilled hole is designed to provide convenience for your fermentation process. This allows for gas to escape during fermentation while preventing any air or contaminants from entering the vessel. The drilled hole is sized specifically for a standard airlock, which can be easily inserted to create an airtight seal.

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