Question: what is the difference between ge water filter rpwfe and rpwfe?
Answer: The only difference between the RPWF and the RPWFE is a chip on the back of the E which tells when to change the filter and supposedly detect leaks. To bypass this nearly $40 over charge by GE, take the sticker containing the chip off of the old filter and place it in the exact spot on the new RPWF filter.