I can't even remember when I began using these filters, its been that long ago. Other filters that claim to do the same as these filters cost wayyy more. Why would I switch? I can tell the difference between the water quality when I install new cartridges. The water tastes cleaner.

If I have a question or a problem I know I can talk to a LIVE breathing person (Igor), NOT a robot/(AI). They can be so annoying and time consuming. I won't buy from robots!

In my opinion everyone should use Pure Effect filters. Easy to install and simple to use.