Grommet for 3 pcs airlock 

A pack of 2 Silicone Grommet for 3 pcs airlock to seal it effectively.
Fermentation lock or airlock is a device that provides a one way route to gases. It allows carbon dioxide released during fermentation to escape from the carboy while not allowing air to enter back in. This prevents oxidation.
Rubber stoppers with a drilled hole sits on the mouth of the carboy and an airlock fitted over it.

Easy to use:

There is 1/2″ hole in the fermenter lid. Firstly insert the black grommet into the cover hole. Place the tapered tip of the airlock into the grommet hole. The air brake kit allows air bubbles to escape during the fermentation while preventing oxygen from damaging your fermentation and beer brewing.

The 3-piece air lock can be removed and completely cleaned and senitized with a small brush.

• Made from food safe silicon , never chips and flakes up
• The grommet allows for easy installation into a bucket lid and provides a good seal.
• Use with airlock for fermentation ,Perfect for securing airlock during fermentation
• An airlock can be inserted in the grommet,Fits airlock perfectly
• The Grommet will help maintain the ferment for a longer period
• Grommets for 15, 25,30 and 60 litre fermenter homebrew