Have tried several Shower Filters and None of them pleased my WIFE..... She is very fussy about her hair, I could see no problem with out water even without a filter... However, I have been married for 50 Years and have learned, that when it comes to her hair... no matter what, I lose and she wins..... So its much to my advantage just to give in right away... At any Point... SHE IS HAPPY WITH This product...... Thank God.