Purge Cleaning Filaments by Advanced Engineering Filaments (1.75mm/2.85mm)

My mk4s default CHT nozzle kept clogging with ASA. To a point of no return and I had to use this. Worked like a charm. Although I gotta say making a ring as instructed is kinda funny with zero bed adhesion. Didn't need much of it to do a full cleanup of that long nozzle.

Works really well. Used to have nozzle clogged when filament change between ABS and PLA. With this in between , no more clogging.

A mist-have and simple to use. Reasonably priced as well.