Product review (5 stars): This came quickly and as advertised. We are getting ...
This came quickly and as advertised. We are getting fresh clean water from our refrigerator now. If you are trying to replace a RPWFE, then you need to have the rfid tag that came with your fridge, or you can purchase another one here on Amazon. Then you remove the RFID and place it on the RPWF so you can have filtered water. This particular cartridge also has a sticker that will tell you when you need to purchase a new one, some kind of timer, and you can place it over the top of the "Not Filtering" light on the front of your fridge.