PTFE Bowden Tube for 1.75mm Filament – 2.5mm ID x 4mm OD (0.098 in x 0.157 in) Extruder Feed Tube for Mini 3D Printers

Smooth, low-friction PTFE (Teflon) tubing designed for reliable filament guidance in Bowden and extruder feed paths. Ideal for 1.75mm filament, this tube reduces resistance for consistent extrusion and long print runs. Choose white or translucent gray for best performance; fully transparent FEP offers visibility but has trade-offs.

Specifications:

• Item Type: PTFE Tube
• Material: PTFE (Teflon)
• Compatible Filament Diameter: 1.75 mm (0.069 in)
• Inner Diameter (ID): 2.5 mm (0.098 in)
• Outer Diameter (OD): 4 mm (0.157 in)
• Recommended Max Temp (PTFE white/gray): 240–260°C (464–500°F)
• Max Temp (FEP fully transparent): 200–220°C (392–428°F) — not safe for hotend internal use
• Primary Use: Bowden/extruder filament feed tube for mini and desktop 3D printers
• Color Options: White, Translucent Gray (recommended), Fully Transparent (FEP)
• Maintenance: Consumable component — inspect regularly for wear and replace as needed
• Warnings: Do not use FEP tubing inside hotends; PTFE degrades if overheated — stay within rated temperatures

Guide & Tips: Avoid fully transparent tubing for feed paths on machines with filament resistance detection — transparency can trigger false resistance alarms. White or translucent gray PTFE offers the best balance of low friction and moderate visibility for smooth feeding. Select tubing based on application performance, not just appearance.

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