Product review (1 stars): unsatisfactory substitution for Whirlpool PUR filter
Like many other reviewers, I previously subscribed to Whirlpool PUR filter and was satisfied. They lasted 6 months, as advertised. When that item was discontinued, Amazon substituted this one, and it is not acceptable. Besides the fact that it is more expensive, it does not last anywhere near 6 months. I would be very grateful if someone could recommend a better filter.