MakerBot Smart Extruder+ for the Replicator Z18

Compatible with 5th generation or newer models of the Replicator Z18, the Smart Extruder+ from MakerBot is a user-swappable spare or replacement extruder that has been tested for over 160,000 cumulative hours to help ensure greater print success over time and to deliver dependable and consistent 3D printing performance. A spare extruder also helps to ensure minimal downtime.