This is the Ultimaker 2 hot end bundle. This bundle is ONLY compatible for the Ultimaker 2 and contains:
The integrated nozzle + heater block
Glass filled PTFE coupler
Hot end isolator
Spring + Set screw
PT100
PTFE Coupler ring
**For Ultimaker 2/Go/Extended; not compatible with Ultimaker Original/+, nor with the Ultimaker 2+ and 2 Extended+.**