The hot end bundle is fool proof when assembling. There is only one way to assemble it, no (more) small differences. It is leak free, So no need to use teflon tape or ABS to make the extruder leak free. The new hot end bundle is free of plugs and retrofit. Which means all users can benefit from it as well.
Compatible with the Ultimaker Original and Ultimaker Original+.
Nozzle: now easily changeable as you can just screw it on and off
Brass pipe with flange: the flange will prevent leakage around the PEEK part
Telfon tube: it's main purpose is heat transition to prevent plugs