Fermonster XL PET Carboy – 7 Gallon

The Fermonster XL PET Carboy – 7 Gallon is brilliantly clear with built-in 5-Gallon, 6-Gallon and 7-Gallon markers on the side for your convenience. There is no problem getting your hand and/or arm inside to clean or remove anything added during fermentation. The 4″ wide mouth opening and rib-less side make mixing and cleaning a breeze. **Requires a #10 stopper**