Extra Thick Silicone Gasket/Seal specially made for the stainless steel Lid of 35L Digiboil/Brewzilla.
The standard seal for standard stainless steel lid is thin and not able to close tight with the clamp from the 35L digiboil/brewzilla thus may cause leaking of vapour when run distillation.
This extra seal will improve a lot
Note: It is recommended to use some silicone glue to glue the seal with the lid for better sealing result and easy to use because it may fall down when you try put the lid on.