If your refrigerator specifically requires the RPWFE filter you will NOT be able to use the old type RPWF cartridge.
The GE RPWFE filters are different than the RPWF filters.
What’s the difference?
The reason you can’t use the RPWF for the RPWFE is that the newer GE refrigerators “use radio frequency identification (RFID) to detect leaks and monitor filter status.” This means the RPWFE filter contains a chip which “talks” to the fridge to let it know that it’s a genuine factory product. This is why the RPWFE is more expensive to replace than other filters.
Quick and easy! So please don’t buy a RPWF replacement for a RPWFE