3Dman PC4-M10 Male Straight Pneumatic PTFE Tube Push In Quick Fitting Connector for V6 Long Distance Bowden Extruder 3D Printers-20pcs

Bought these to replace the stock ones fitted to my Creality ender 3 pro 3D printer as the stock ones fitted was letting the PTFE slip.They fitted perfectly direct one for one replacement for those fitted to the extruder and the hothead.They work well with the stock PTFE and the higher temperature Capricorn PTFE.These do not require the collars that the stock ones need as the grip / release mechanism is sprung which makes them more reliable and a more positive grip and hold on the PTFE.Use these the same way as the stock ones but as these have a tactile feel when you want to release the PTFE you know when you have pushed the release in far enough, they have a 'click' feel when the release is pushed in.Good price for the amount you get and the quality is spot on.Yes I'd recommend them and I would buy them again.

An essential upgrade! Found on my Ender 5 Pro the fittings to the bowden tube kept slipping at one end when extruding despite using a new connector (as supplied with printer) which appeared to only have plastic lugs. These are so much better made and have metal grippers/lugs, simply push them down when inserting the tube (after screwing in) and they securely grip the tube - no need for those plastic things to keep them tight (well to try to stop them moving)... I bought this set which was 10 of each type: "3Dman PC4-M6 Pneumatic Fitting Push to Connect + PC4-M10 Straight Quick in Fitting for 3D Printer Bowden Extruders -20pcs"

If you're using these for your 3D printing dry boxes please note that these will allow the 4mm PTFE tubing to pass straight through the connector. This can be good to prevent the filament from rubbing against the metal of the connector by leaving about 10mm inside the box but can also cause problems when feeding Filament that is tight on the spool as it will pull the tube through into the box.

perfect fit great quality i will be purchasing again

Good solid fittings, much better than the ones that came with my 3D printer. PTFE tubes also feel of decent quality. One thing I didn't realise until they arrive is they are not transparent at all like white tubes. It's nice to be able to see where in the tube the filament is when feeding it through. My own fault for not realising that before buying though so rating is based on the quality of the product.

Good quality good fit works well on filament tubes 4mm

i bought these to replace the ones that came with my ender 5 pro , as most will know they can slip with the capricorn tubing that comes with the pro version.the one for the extruder motor has a larger head nut so it feels very solid as you tighten it . the one that comes with it is smaller and feels like it could snap . i only used one on the metal extruder and it held the tubing rock solid . where as the one that came with the printer was slipping . so when i got around to clean the hot end out i also fitted one to that too.it helped with under extruding problems because it held the bowden tube solid , they also has some kind of thread locking stuff on the threads which i suppose helps them stay tight , all i can say is now there`s zero movement on the tubing and no more under extruding.i am going to buy another set so i have more just incase.well worth the purchase and great value.

I upgraded my extruder recently to aluminium but the connectors that came with the new extruder were rotten... They came away in my hands on fitting.These connectors came quickly and are of much better quality. I still have trouble getting them to release though, even when depressing and wriggling.It would be better if they came in smaller amounts as hopefully I wouldn't need additional sets