Achieve reliable fermentation results with this 2-piece 3-part brewing airlock set, ideal for homebrewing beer, wine, cider, kombucha, or fermented vegetables. Each airlock is made from BPA-free PP plastic with a secure-fit rubber grommet, allowing CO₂ to escape during active fermentation while preventing oxygen or contaminants from entering the fermenter.

The transparent design makes it easy to monitor bubbling activity. This classic 3-piece airlock structure is easy to disassemble for thorough cleaning and reuse. Simply drill a 12mm (1/2 inch) hole in your fermenter lid, insert the grommet, and push in the airlock stem for an airtight seal.

• 3-piece fermentation airlocks allow gas to escape while blocking air from re-entering

• Made from BPA-free plastic, safe for all home fermentation projects

• Transparent design makes it easy to monitor fermentation progress

• Reusable and easy to clean, can be soaked in sanitising solution

• Includes grommets for secure and airtight lid installation

• Material: PP plastic

• Fitment Hole Size: 12mm (1/2 inch)

• Airlock Type: 3-piece style

• Length: 11.5cm

• Diameter (widest point): 4cm

• Colour: Clear

• Suitable for: Beer, wine, kombucha, sauerkraut, kimchi, and more

• 2 × 3-piece fermentation airlocks

• 2 × Grommets for lid sealing

• Silicone stoppers/plugs are not included.

• Ensure grommet fits securely for proper airtight performance.

• Slight colour or size variation may occur due to lighting or manual measurement.

• Soak parts in sanitiser before and after each use for optimal hygiene.