Bowden Hotend Pneumatic Fitting - 4mm Tube (through fitting) & M10(1/8" BPT) Thread


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Current Stock: 491

Free shipping in Canada for orders over $140 before tax. (via Canada Post)

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 [stock Creality hotend])
  • Thread: 1/8" BSPT (M10 compatible)
  • 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 pneumatic through fitting from Spool3D for your 3D printer in Canada without the surprise cost of the exchange rate!



5 out of 5 (based on 5 ratings)
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Bowden Hotend Pneumatic Fitting - 4mm Tube (through fitting) & 1/8" Thread

Better than OE
Posted by Dan Keen, August 14, 2020

Bowden Fitting

Originally was using a PC4-M6 fitting but the filament kept catching/rubbing so switched to this instead. Same tight seal but without possible friction. Recommend using these if you make your own enclosure or filament box to reduce snags.
Posted by Adam, July 10, 2020

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