Airlocks (set of 4)

4-Pack Airlock Set with Grommets – Ready to Install in Any Bucket or Barrel

This 4-pack airlock set is perfect for any home brewer or distiller looking to outfit multiple fermenters. Each set includes four classic double-bubble airlocks and four rubber grommets, making it easy to install an airlock in any plastic bucket or barrel lid.

Just drill a ½” hole, pop in the grommet, and insert the airlock—it’s that simple. These airlocks allow CO₂ to escape during fermentation while keeping oxygen and contaminants out, helping you achieve cleaner, more consistent results every time.

Includes:

• 4 double-bubble airlocks

• 4 rubber grommets (fits standard ½” drilled holes)

• Compatible with most buckets, barrel lids, and custom fermenters

Whether you’re brewing beer, fermenting wine, making mead, or prepping a mash, this set gives you everything you need to get multiple batches bubbling.