Transparent Bubbler Fermentation Airlock

Buy on Amazon
This transparent bubbler-style airlock pairs with a bored bung cork stopper to create a simple, effective seal for home fermentation vessels such as glass demijohns. It allows CO2 to escape during fermentation while preventing outside air and contaminants from entering, which is essential for producing clean beer, wine, and other fermented beverages. Overall it offers a practical, low-cost solution that is easy to monitor and clean.
Key Features & Specs
| Type | Three-piece bubbler airlock with water seal, allows visual monitoring of fermentation activity |
|---|---|
| Material | Clear transparent plastic construction for easy visibility of water level and bubble activity |
| Stopper | Includes bored bung cork stopper sized to fit standard glass demijohn necks |
| Compatibility | Designed for glass demijohns and suitable for beer, wine, cider, mead, and other home fermentation projects |
| Function | Releases CO2 produced during fermentation while blocking oxygen, wild yeast, and airborne contaminants |
| Maintenance | Disassembles into separate pieces for thorough cleaning and sanitizing between uses |
| Setup | Simply fill the reservoir with water or sanitizer solution to the marked line and insert into the bung |
Best for: Beginner and intermediate home brewers who ferment beer, wine, or cider in glass demijohns and want an affordable, easy-to-read airlock that keeps their batches protected without any complicated setup.