UltiMaker Print Core Cleaning Filament (2.85mm)

Ultimaker Cleaner "The Best"

The PLA option to clean cores does not do the job the way it should. For example, used PLA in Hot and Cold pulls and tip looks good. However, I followed up with Ultimaker Cleaner, doing the Hot and Cold pulls, and many additional colored spots from brown to black were cleaned out. Ultimaker Cleaner is "The Best"

Good, but not a great value.

These things seem to work well, but I think they may be a little too short for their intended purpose. After a couple of pulls you'll be throwing away half of each piece because it's too short. Also, I'm not convinced that they're any more effective than some nylon filament.

Core cleaner

Great product! Easy to use! Cleaned print head right up!