Product review (1 stars): Better off spending the money for a good filter
My water tasted fine for about two weeks after installing one of these, after that it tasted awful. It had a tolerably bad aftertaste right after filling the glass while the water was still cold.  but if you let it sit more than 30 minutes the taste and the smell of the water were horrendous.  I have had to go back to the Whirlpool replacement filter, made by Whirlpool.  A lot more expensive, and now I know why. I do not recommend this product.  Unfortunately I bought two so I will have to throw the other one away.