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 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.

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

I used these with a replacement part for my prusa MMU2s. They hold the ptfe tube perfectly and actually make the mmu work. Would buy again

Bought these to replace the ones that came with my 3D printer and they work great very good quality and well-made. I obviously only needed to so there are many here to replace others in case I need to on Down the Line but the two I used are working great for the time being.

worked better than the stock ones that came with my printer. definitely will buy again if I need more.

Designed a new box for printer filament, and they worked great

Metal grip teeth inside. It holds the tubing firmly.

You pay for a new and get used. The connectors are not as showed in pictures.

Threads are enormous, not 6mm

It fit my needs good.