BIQU PC4-M10 Pneumatic Connector Fittings Bowden Tube Coupler Male Straight PTFE Tube Push for E3D-V6 Bowden Extruder 3D Printer (Pack of 10pcs)

I used these to replace Crealitys cheap fitting on my Ender3. I dont have any issue with the bowden tube coming out of the hot end. Now its time to replace the one on the extruder. That said this is the fitting for the hot end and will not fit on the extruder.

I am using these connectors with PTFE tubes on my various printers and so far theyve been perfect. No issues, and the product quality seems excellent.

I have replaced every connection point for Bowden tubing on my Ender 3 V2 with these connectors because there is no issues with travel at all. I even went as far as to mill out and thread a larger hole on my all metal hot end and extruder housing to be able to fit these. Running 2mm retraction settings on a dual gear Bowden feeder flawlessly.

Setup to replace the one on top of my Tonxy X5S after it exploded off after a jam. This set appears to be good quality, solid, and works well. All have good spring action in the cuff, and the one in use is doing its job perfectly.

good quality, thank you

Setting up 5 color 3d printing was a bit of a challenge until I saw a mod that suggested using these in place of the clamps that were specified. This was a much better option. They grasp the PTFE tubing perfectly and hold it while also allowing easy removal.

i used these to replace the stock plastic parts on my Rep2Box. also adding them to my MMU2, after i print out the adapters

Not much to say, I bought these fittings to work with 4mm OD PTFE tubing on a 3D printer. They work as expected.

These hold as good as the originals. Just a little more play than the Capricorn branded one I just replaced. These are not reusable, once you take the tube out, they wont hold again.

The input end of the Endor 3 takes a 4mm thread, not the 10mm thread on these.