GC Fuji® Automix LC cartridges will fit the metal dispenser (Paste Pak Dispenser). However, the metal dispenser is not designed for direct placement into prepared teeth. The new Paste Pak Dispenser II is recommended for precise placement into prepared teeth. GC FujiCEM® 2 dispenser (pink color) is not recommended to be used with GC Fuji Automix LC cartridges.