Product review (1 stars): Don't sacrifice your water quality
I was eager to try and test these filters, here's my results...
1. Replacement/Installation was easy
2. Ran water and noticed an increase in waterflow/pressure vs my normal filter GE filter
3. Tested PPM ( Parts Per Million )
of my tap water and water from the filter
  A. Tap Reading: 353ppm
  B. Filter Reading: 352ppm

The increased water pressure and PPM readings tell me that these filters do not filter anything. Do not waste your money and buy a different filter if you actually want to filter your water. I wish I could return these items...oh well.