Twin Bubble Airlock and Carboy Bung (Pack of 2)

This pack contains twin bubble airlocks and matching carboy bungs, offered as a pack of two sets for homebrewers and fermenters. The twin bubble design provides a visual indicator of fermentation activity while allowing carbon dioxide to escape and helping prevent oxygen and contaminants from entering the vessel. Each airlock fits into a carboy bung to form a simple, functional seal for fermentation vessels. Ideal for small-batch brewing, winemaking, or other fermentation projects where a reliable, easy-to-monitor airlock is required. Good for use with standard carboy openings in home fermenting setups.