Review on High-Quality Creality Capricorn Filament Pneumatic Fittings: A Must-Have for Smooth 3D Printing! by Johnathan Sherman

For a description that raves about the inner diameter and quality of the hose, this is actually very inaccurate. One of the ends of the clutch that came with the kit was horrible and didn't hold the phone. The inner diameter of the tubing was so small that the thread actually pushed the tubing out of the sleeve as it passed through. Luckily a spare clutch was included. The diameter of the inner tube leaves a lot to be desired. I tried 3 different spools of 1.75mm line and the friction was obvious! My carbon fiber spool didn't even fit in the tube. This causes jitter when the filament is fed. I'm surprised to see so many positive reviews for this product, but I personally don't recommend it to anyone.