The Hex - 3 Piece Airlock

Monitor fermentation and protect your brew with The Hex 3 Piece Airlock, a durable fermentation airlock designed for beer, wine, mead, cider, kombucha, and other fermentation projects. Built from thick-walled BPA-free plastic, this upgraded 3 piece airlock helps prevent oxygen, bacteria, and airborne contaminants from entering the fermenter while allowing CO2 produced during fermentation to escape safely. Its reinforced hexagonal chamber design improves durability and helps resist cracking or breakage commonly associated with standard airlocks.

The Hex maintains all the functionality of a traditional 3 piece airlock while improving long-term reliability for repeated brewing use. The gold-colored internal piston makes bubbling activity easier to observe during active fermentation, helping brewers visually monitor yeast performance and fermentation progress.

Compatible with standard fermentation setups using drilled rubber stoppers and fermenter lids, The Hex works well with beer brewing, wine making, mead fermentation, hard cider production, and other small-batch fermentation systems.

Widely used by homebrewers looking for a more durable and reusable fermentation airlock, The Hex provides dependable airlock performance with upgraded materials and design.