- Compatibility: fit for 3D Printer 1.75 mm Filament and other devices
- Easy to Install: the extruder fittings are PC4-M6 and the hotend fittings are PC4-M10, the upper part can be inserted outer diameter 4 mm PTFE tube and self-locking
- PC4-M6 fitting: copper and plastic material, durable and sturdy; Thread: 6 mm, inner diameter(blue end): 4 mm, fit for the tube whose outer diameter is 4 mm
- PC4-M10 fitting: stainless steel and plastic material, anti-oxidation, anti-corrosion, and high hardness; Thread: 10 mm, inner diameter(black end): 4 mm, fit for the tube whose outer diameter is 4 mm