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 ordered these because I needed them quickly. I was a little concerned about the quality because of the really low price compared to my normal source. I didn’t need to be concerned. These are very nicely made and every bit as good as my normal source. I may continue to use my normal source out of loyalty since they have provided me with other services as well as parts, but in a pinch I won’t hesitate to buy these again.

Someone told me to buy this for my monoprice voxel printer and it was not the correct kind. Had to send back.

These are a must have if you are trying to keep your PTFE tubes for the Prusa MMU2s unit. Use them for all connection spots on the setup (15 total) and removal and adjustments are a breeze.

Used to replace bowden tube holder on Creality CR10S Pro 3d printer. Direct replacement fit with no issues.

The product details say this fitting is 6mm. That is incorrect. They are 10mm.

The item does not match the photos. I specifically purchased these because I thought the bottom was flat, not recessed.

good quality, thank you

Good

very good quality. good clamping

After deciding to take a chance with these since they were recommended in a Creality message board I almost instantly regretted it. I had made several flawless prints with the stock connector on my CR-10s Pro using PETG filament and then the connector broke. I then threw one of these on and set up my next print. 5 minutes into the print nothing was coming out. Naturally I thought the nozzle was clogged so I went to pull the filament out but it wouldnt budge. I unscrewed the connector amd found that the ptfe tube was sitting crooked inside the fittingand the results are shown in my picture. The filament was pinched and spooled up inside the cavity. I tried feeding the tube at different lengths through the connector and tried 4 different connectors amd they ALL had the same results, crooked tube and pinched filaments. TLDR: These connectors cause jams. I have never had anything like this happen before with the OEM connectors. These went right where they belong, the trash.