FermZilla - Replacement Lid Seal (OD106mm x2.65mm)

This thicker Lid O-Ring is suited to FermZilla Conical and All Rounder Models. All future models produced after 25/12/2019 to 01/01/2023 will have these O-Rings as standard. 

If you have a brown O-Ring, this is a newer material that is softer and easier to fit. All units manufactured after 01/01/2023 will have this Brown O-Ring as standard

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.