3 Piece Airlock

Monitor active fermentation with the Craft a Brew 3 Piece Airlock, a reusable fermentation accessory designed to allow carbon dioxide to escape while helping prevent outside air and contaminants from entering your fermenter. Compatible with glass carboys, fermentation buckets, and other brewing vessels, this airlock supports clean fermentation for beer, wine, mead, cider, kombucha, and other home fermentation projects. Its removable three-piece design allows for easier cleaning and sanitizing between batches compared to one-piece airlocks.

Designed for homebrewers and fermentation hobbyists, the 3 Piece Airlock helps maintain a controlled fermentation environment by venting naturally produced CO2 during active fermentation. The compact design fits standard #6.5 rubber stoppers commonly used with one-gallon carboys and small fermentation systems.

The airlock disassembles into three separate pieces for easier cleaning and inspection. It is reusable, lightweight, and compatible with many home fermentation setups including Craft a Brew fermentation kits and The Catalyst Fermentation System.

Widely used by homebrewers and fermenters seeking reliable airlock performance and easy sanitation, the Craft a Brew 3 Piece Airlock provides a simple and effective solution for controlled fermentation management.