Bowden Hotend Pneumatic Fitting - 4mm Tube (through fitting) & 1/8" Thread


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The pneumatic fitting is used on Bowden extruders and hold the teflon tubing which the filament is guided through.  

  • Accepts 4mm OD tubing (tubing CAN go through threaded end [E3D V6 & Volcano 1.75mm version])
  • Thread: 1/8" BSPT
  • Used for 1.75 mm filament or 3.00mm depending on PTFE tubing used

Package Contents:

  • Bowden extruder pneumatic tube fitting

Buy a Bowden extruder fitting from #Spool3D for your 3D printer in Canada without the surprise cost of the exchange rate!

Current Stock: 110


5 out of 5 (based on 3 ratings)
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4mm Tube (through fitting) & 1/8" Thread

Fitting arrived promptly and well packaged. I was concerned it might not fit my Creality Ender3 Pro hot end, believing I needed a 10mm thread , but was pleased to find it fit quite well and has stayed secure during several hours of printing.
Posted by Bill, April 25, 2019

fine works well

Excellent quality - the black tip fittings are the best - verify the size you need
Posted by Al C., August 26, 2018

Love the through-fit

It really helps with my hot-end as there is a gap between the bottom of the threads and the opening of the hot-end tube. The fitting has sharp square teeth which seems to help it grip the teflon tube better.
Posted by Lilithe Lotor, January 23, 2018