PTFL heatbreak is suitable for printing filaments such as PLA, PETG, etc. It can effectively reduce nozzle clogging, making printing more smooth, and the two-stage structure makes it easier to replace and maintain. It's a great choice if you often print PLA, PETG, etc.!
But it should be noted that it is not suitable for printing high temperature materials such as ABS, because the high temperature will melt the Teflon tube.