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

The fittings I received are NOT the ones shown in the photos. The ones in the photos show FUSUN 4 is printed on the black release cap, but the ones I got have DONT stamped into the plastic. The DONT ones are very cheaply made and are famous for not releasing when they should and, on the extruder, often breaking and releasing filament to pile up everywhere. They will work for a while but thats all I can give them. Go for the WITBOT ones instead.

Used for 3D printer bowden extension (anet a8 and FLsun Plus). That is really, what I expected. Very fast shipping with Amazon Prime.

very good quality. good clamping

A good Fitting, but this does not fit a stock CR-10. Use PC4-M6 fittings instead.

Great price for the quantity compared to some sellers, work as designed and seem to grip well and best of all they showed up on time.

Worked with my Prusa mini 3D printer!

This supplier first delivered the wrong connectors, shipped the PC4-M6 connectors instead of the PC4-M10. The next day I had a new shipment of the correct connectors, but after seeing flakes of the chrome plating in the bag I started testing each connector to see if they would actually lock on the bowden tubing and found that only 6 of the 10 connectors would even work. The other 4 would not even grip the tubing at all, so a big failure in quality control of the picked connectors. Not very happy with the connectors that were supplied, but they were quick to replace the incorrect shipment. Update: The seller is going to send another replacement set of connectors as soon as possible to makeup for the shipping mistakes and the defective connectors. They are making a clear effort to make sure Im satisfied with my purchase and their customer service.

Items received did not have beveled edge as shown in the product description, instead have a hard edge which makes it difficult to start filament through when fitting is screwed in to mounting. Specifically ordered this product over other brands because of the beveled edge and did not get the product advertised.

good quality, thank you

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