6-Chamber Bubbler Airlock & Rubber Grommet for fermenter buckets.

An essential part of kit for your homebrew.

Designed specifically for homebrew.

It lets the CO2 pressure out without letting contamination back in.

Just partially fill with water and you're done.

The grommet is a standard size so it fits most fermenters with a hole diameter of approximately 10mm (3/8 inch)

Bubblers with Bungs for demijohns are also available from our shop.