Review on Certified Performance Replacement Materials: Enhancing Compatibility for Optimal Results by Patricia Muller

Kangen has two different filters so look at the base of your old filter to make sure you have the right one! With regular use, this filter lasted 6 months. (Note: I'm single so for a couple I'd say 3 months is what you should be getting). In fact, after 6 months everything was working. Didn't brake and didn't clog. However. I noticed the water tasted like tap water and my machine said it needed a cleaning cycle (where you run water through the water until it stops saying "clean"), so I knew it was time to replace it. Make sure you clean your car every month or two as instructed. Here's a video: https://www.youtube.com/watch?v=edsrfXczxJU Also, you don't need to use Kangen cleaning bags. Simply purchase Food Grade Citric Acid here at Revain and use 2 heaping tablespoons in a cleaning cartridge. Hope that helps!