Medium Drilled Universal Carboy Stopper

Clean and sanitize the stopper before use.

Insert a compatible fermentation airlock into the drilled opening.

Place the stopper securely into the opening of a compatible PET carboy.

Ensure the stopper fits snugly to maintain a fermentation seal.

Monitor fermentation as carbon dioxide escapes through the airlock.

Clean and sanitize after use for future fermentation projects.

• One Medium Drilled Universal Carboy Stopper

This universal stopper is designed to seal compatible fermenters during active fermentation.

Useful for:

• Beer fermentation
• Wine fermentation
• Mead fermentation
• Hard cider fermentation
• PET carboy fermentation setups
• Airlock installation on fermenters

The drilled design allows carbon dioxide to escape through an attached airlock while helping keep outside contaminants out of the fermenter.

This silicone stopper can also help:

• Reduce stopper slippage during fermentation
• Support reusable fermentation workflows
• Improve fit across compatible carboy openings
• Replace worn or misplaced fermentation stoppers

The flexible silicone construction is designed for repeated use and cleaning.

• Stopper Size: Medium universal
• Material: BPA-free silicone
• Design: Drilled universal stopper
• Compatible With:
  -5 gallon PET plastic carboys
  -6 gallon PET plastic carboys
• Airlock Compatible: Yes
• Reusable: Yes