Brewzilla / Digiboil 35L - 12L Boiler Extender - Extension Kit

This 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 that allows 12L headroom.

You can also get a larger malt pipe so that you can do much bigger mashes.

This will also fit a 35L digiboil.

Turn that 35L BrewZilla into a 47L behemoth! 

Check out the brand new 35L Extended Malt Pipe to suit this collar extension.

Now that you've gained an extra 12L you probably are going to want the recirculation arm extender. The Camlock Male to Female stainless steel arm extender that is.
KL26413 - Recirculation Arm Extender