This set includes all components to make a J Head hot end.
Use 6/2 ptfe tube for 1.75MM, 6/3.18 for 3MM filament. The max operational temperature is 247 degrees as the peek will start to become some at this point. However, approaching this point you should already be carefull not to use to much force or the nozzle may be pushed out of the holder.
ReprapWorld is the number one webshop for all your reprap supplies for your 3D printer. We have a large collection of 3D printer components, from our famous electronics lines to filament from our own production. And everything is at a very competitive price!