Fermzilla 55L Insulation JacketGreat for insulating your Fermzilla if you don't have a fridge. With the TEMP TWISTER cooling heating coil and a heating cooling system this is a good alternative to putting your Femzilla in a large fridge. At BKT HQ we've used the Fermentasaurus gen1 for a few years now in fact we sold our SS Brewtech Brewmaster Chronical once we got one as we preferred it (believe it or not). True its not as shiny but its 1 4 the price and you can see the