An Ok replacement
The rep from PetGuys. com recommended these filter cartridges to replace my Millenium 2000/3000 cartridges; which are no longer available. The filters do the job intended but do not fit snug in the filter. I was very pleased for his time and assistance.
ProsThese filters, though not excellent replacements, hopefully will do the job intended and keep me from having to replace my Millenium 3000 Filter. They are quite economical and easy to use.
ConsThe main dislike aspect is the fact that the original Millenium 2000/3000 filter cartridges are no longer available.