Fermonster Carboy - 3 gal.


Item #: 44867
Weight: 6LBS
Availability: In Stock


This innovative fermenter was specifically designed to have the features a homebrewer wishes every fermenter had.

Designed specifically for fermentation, the FerMonster 3 Gallon Plastic Carboy has incorporated all of the features a homebrewer would want in a fermenter. It has huge 4" mouth opening for easy filling, and makes hop or oak additions a breeze. Thanks to the extra wide opening, cleanup is as easy as wiping down the inside. The smooth interior surface reduces yeast and sediment buildup. There are no ribs or texture to collect yeast or bacteria, making it the most sanitary PET carboy on the market.

The Fermonster is made from thick, heavy PET plastic (the same material used in 2 L soda bottles), for structural integrity and impermeability to oxygen. It is lighter and safer than regular carboys. It can easily be moved by hand, or you can use it with our Carboy Carrier for even greater ease of use. These fermentors are completely air-tight and the lids sealed tight with an O-Ring. Additional O-Rings and Lids both with and without holes are available for purchase, see our You Might Also Need items below.


  • 4" inner diameter wide mouth carboy - easy to clean!
  • Food grade PET plastic construction is nearly impermeable to oxygen penetration
  • No hard to clean dimples or ribs
  • Punted bottom
  • O-Ring and Lid with one hole is included (Fits #10 Stopper)
  • Additional O-Rings and Lids available
  • Weight: 1.5 lbs
  • Temperature Limit: 140 F
  • Height: 14.6 inches
  • Diameter: 9 inches
  • Completely taste and odor free.

Please note: the pictured #10 Stopper (44021) and three piece airlock (16598) are not included.

Product Specifications

Related Products


Fermonster - Replacement Lid O-Ring
$ 2.95


FerMonster - Solid lid
$ 4.95


FerMonster - Lid with Hole
$ 3.95


FerMonster Lid Opener
$ 3.95


The Fermonster/Carboy Carrier
$ 14.95


Airlock - 3 Piece
$ 2.45


Airlock - S-Shaped
$ 1.95


Rubber Stopper - #10 Solid
$ 2.95


Rubber Stopper - #10 With Hole
$ 2.95