Brewzilla / Digiboil 35L - 12L Boiler Extender - Extension KitThis can be added to a Gen 3 or Gen4 35L brewzillas without the need to get the extension for the recirc arm. Extension only needed if you want to use the bigger malt pipe also. Ever wanted to punch out a few more litres of wort with your BrewZilla 35L? Maybe you wanted more strike water for a super sticky batch. Maybe you get boil overs a lot and would like a bit of extra protection. Now there's a solution! The all new 35L BrewZilla boiler extension