BrewBuilt® X2 Uni Conical Fermenter. $549.99 to $624.99. BrewBuilt® X2 Jacketed Uni Conical Fermenter. 3 Reviews. $999.99 to $1,299.99. BrewBuilt® X2 Jacketed Uni Conical Fermenter | Premium Chilling Package. $2,159.99 to $2,559.99. BrewBuilt® X3 Jacketed Uni Conical Fermenter. $1,099.99 to $1,899.99.