Replacement Lid O-Ring for FermZilla. Fits all models and sizes of FermZilla fermenters.
If you are experiencing leaking from the top lid section, this slightly thicker O-Ring will aid in resolving said leaking. To perform a leak test, please remember to have the unit free of any liquid as that will absorb CO2.
It is also important to remember not to overtighten the stainless steel handles that may have come with your FermZilla. Over-tightening will cause the opening to warp and not seal. The handles should be able to freely rotate around the neck with little resistance.
