Bowden Hotend Pneumatic Fitting - 4mm Tube (through fitting) & M6 Thread


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Current Stock: 63

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 [E3D V6 & Volcano 1.75mm version])
  • Thread: M6
  • Used for 1.75 mm filament or 3.00mm depending on PTFE tubing used

Package Contents:

  • Bowden extruder pneumatic tube fitting

Buy an M6 Bowden extruder through fitting from Spool3D for your 3D printer in Canada without the surprise cost of the exchange rate!



5 out of 5 (based on 9 ratings)
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Excellent replacement...

...for my extruder feed. Original one did not hold tube anymore. This one feel very nice when pushing in the tube and holds it as it should!
Posted by Sven, February 16, 2022

Bowden Hotend Pneumatic Fitting - 4mm Tube (through fitting) & M6 Thread

Works perfect
Posted by Brent Hilderman, October 02, 2020

Work as Expected

These are great quality pieces and worked as expected for my needs.
Posted by Tim Aucoin, October 28, 2019

Ender 3 Pro -fits well

It fits, it holds the Bowden tube in place, and hasn't slipped since I installed it. Can't think of anything else I could ask for.
Posted by Julie Peace, July 23, 2019

Stock up

I have found that over time the pneumatic fitting at the extruder drive will loosen up from retraction movements. These are quality fittings and it will pay to have a few on hand. Spool3D is always my first choice.
Posted by Roger Flagg, November 05, 2018

fine works well

great quality
Posted by Allan Crook, August 26, 2018

Fantastic Bowden couplings

I've bought a fair few of these things over the past couple of years and these are the best I've used to date.
Posted by Edward, April 02, 2018

boden fittings and tubing

Great products well made and better than original items Fast shipping.Will definatlly keep buying from Spool Thanks
Posted by undefined, March 08, 2017

Works very well

Works better than brass Pneumatic Fitting
Posted by Denis Spasyuk, January 03, 2017