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Packaging instructions: Blue PTFE Bowden Tubing (2m*2) + 4 Pcs PC4-M6 Fittings + 4 Pcs PC4-M10 Pneumatic Fittings【Highly Compatible】--Compatible with Creality 3D printer:Ender-3/Ender 3 V2/Ender 3 Pro/Ender 3 S1/Ender-5/CR-10/ and other 3D Printer 1.75mm FilamentCompatibility: PTFE tube kit for 3D Printer 1.75 mm Filament and other devicesBlue PTFE tube: durable PTFE material, safe and odor-free, self-lubricating, high-temperature resistance; Inside diameter 2 mm, outside diameter 4 mmPC4-M6 fittings: 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 mmPC4-M10 fittings: 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 mmEasy 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
