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

Exactly what I needed and works great!

Does what its supposed to do and fits the socket on the stock hotend as well as on the extruder, retaining the Boden tube at either end. My extruder is an aluminum single gear after market upgrade, the silver one not the red one, and these fit it just fine. The fitting on the extruder end broke and would no longer retain the Boden tube, and the one on the hotend side was stuck on the Boden tube, so I needed some replacements. Only took a year for the old ones to break. In a year from now, Ill have extras when I need them. Combine these with Capricorn tubing and Cheps hot end mod, and you cant go wrong.

Needed extra male adapters for my CR10 and this fit perfectly, really great quality.

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.

Purchased this pack to replace a broken connector on my sons Creality Ender 3 Pro. This popped right in and had him back up and running within minutes. Construction seems at least as good as the original part, maybe even a bit better. And since its a large pack, we have plenty of extras if it fails in the future!

Purchased to replace improper functioning Creality CR-10S hot/cool end unit. None of these would release Bowden tube either! New Bowden tubes, same results. These were to blame due to poor removability of Bowden tubes.

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.

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.

very good quality. good clamping

This products photos are misleading - they clearly show the fitting as having a beveled and tight interior edge, yet the fittings that arrived have an open interior Thats an issue, as the open interior allows the PTFE tube to move more freely. More movement directly leads to a shorter lifespan of the fitting and can also cause issues with filament loading We run a printer shop with twelve printers running continuously and I need parts that are dependable, not fittings that will wear out over the span of twenty hours of printing Please either update your listing photos or start sending out fittings with beveled edges. As it is, i can only recommend these as a cheap and temporary fix