Bests & Worsts Reviews from Amazon

Inserted the filter into my 6 months old Frigidaire, ran water through for 3 minutes as instructed, and waited for the cloudy, gray water to clear up. Still gray and cloudy. ran it for 3 more minutes...still gray and cloudy. Tasted the water and noticed a slight sour aftertaste. I put my original filter (came with the new Frigidaire 6 months earlier) and the water came out clear and no aftertaste. I don't trust that this supposedly new filter came from Frigidaire or was new! It wasn't sealed and was loose in the flimsy box. It is in the mail back to Amazon. I'm calling Fridgidaire direct.