Little Big Mouth Bubbler®The perfect small batch primary fermentor. The Little Big Mouth Bubbler fermentor holds 1. 4 gallons offering nearly half a gallon of extra headspace. Cut down on cleaning with the Little Big Mouth Bubbler and simply wipe it clean after primary through the wide opening. To top it all off, the Little Big Mouth Bubbler makes a great, inexpensive 4L yeast starter vessel! Kit Includes: Little Big Mouth Bubbler Glass Fermenter Single Port Lid Drilled