Balliihoo Homebrew Home Brew & Wine making - Airlock Grommet
Rated 3.4 / 518 ratings on Amazon →
Pros
- Cheap replacement airlock and grommet for demijohns or buckets
- Handy spare to keep fermentation sealed and bubbling correctly
- Established UK home brew brand
Cons
- Mixed reviews — check grommet fit against your vessel neck size before buying
Related attributes
Not sure which fermentation equipment is right for you? Read our Best Fermentation Equipment UK (2026) guide.