This lid is designed and made for 65L Brewzilla or 65L Digital Turbo boiler with 4″ fitting and sight glass as well as a dial thermometer.
This lid was made 2mm thickness solid copper and can afford heavier pressure on top of the boiler so that you can install most of the heavy condenser like 4 inches modular still condenser.
This lid come with a 2″ sight glass which you can remove it for other purpose.
Also it comes with a dial thermometer so that you can see the temperature on top of lid.
The lid comes with a thick silicone gasket/seal which is already been installed into the lid so that you can use the lid directly.
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