Kingroon Teflon Bowden Tube (1M) 1PCS+6pcs KJH04-M6 Fittings + 6pcs JP4-01 Pneumatic Fittings with PTFE Teflon Tube Cutter for 3D Printer 1.75mm Filament

My LK5 Pro was having issues with the Bowden Tube seperating during printing from the push fitting near the extruder. I was able to temporarily fix it with a zip tie but that failed after about a dozen prints. Luckily when it first happened I ordered this set so I was able to replace the Bowden Tube, extruder fitting, & nozzle and had my LK5 Pro back up and running in no time.

Definitely needed the tubing and the cutter, old one was clogging when I tried to print and wouldn’t unbind in the tubing.I do like that it came with replacement connectors, but sadly they did not fit my machine. I should have checked that before buying it.Ender 3 max. Stock hot end is a mm larger than what the connectors use. Otherwise exactly what I needed. They’ll probably last me a few years since I only needed .5 meters replaced.

I have 3 printers running & these are perfect for my maintenance. I run LK5 Pros & they fit perfectly.

If you don't cut the tubes perfectly perpendicularly, filament can seep into the extruder heatsink area, which will make you sad. The cutter thing this comes with cuts it straight, which is critical.Everything else in this package is the same as you'll get anywhere else, which is good.

No clips for the smaller connectors. But otherwise it worked fine.