Drop in replacement silicone nozzle cover for the Ultimaker 3

The Ultimaker 3 line of printers, including the Ultimaker 3 and Ultimaker 3 Extended, utilize silicone nozzle covers to help shield the print cores from the cooler airflow of the integrated fans. These fans help to maintain a stable temperature during the printing process. These nozzle covers also help to prevent filament from backflowing into the print head itself when things go wrong when printing. 

Over time, heat will cause wear and damage to the nozzle cover. We recommend you check the quality of this cover every three months. 

See full replacement instructions here.