The function of the PTFE tube is to reduce friction and guide filament. The tube has an inner diameter of 2.5 mm and an outer diameter of 4 mm. Please note that the PTFE tube is a consumable item prone to wear and tear. It is recommended to check it regularly for wear and replace it in a timely manner when necessary.
Suitable for 3D printers from companies like Bambu Lab and Creality that use 1.75mm filament.
