5 Gallon Secondary Fermenter Big Mouth Bubbler®

Item Number: 42923

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An easy and complete way to add secondary fermentation to your brew process.

Secondary beer fermentation adds a new dimension to your brewing. Elevate flavor with extended aging, dry hopping, or additions of oak, fruit—anywhere your imagination takes you. Achieve better beer clarity, less sediment, and smoother mouthfeel, all by simply transferring your homebrew to a secondary carboy.

Featuring a 5 gallon plastic Big Mouth Bubbler® vessel with lid and airlock, the Raise Your Game Secondary Fermenter is your one-step solution for plug-and-play secondary fermentation. Plus, more carboys means more space for future brew days. It's a win-win.

Now Includes the Big Mouth Bubbler® carrying harness for lifting, transporting and ensuring your Big Mouth Bubbler lid stays firmly in place during even the most intense fermentations.

The perfect addition to any of our Beer Making Starter Kits.


  • 5 gallon plastic Big Mouth Bubbler®
  • New Big Mouth Bubbler® Universal Lid
  • Universal Harness for Big Mouth Bubblers®
  • Small Universal Stopper
  • Bubbler Airlock

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