Product review (1 stars): Horrible taste from filter - make sure you flush at least 4 gallons through before use!
You need to run at least 4 gallons of water through these before use.  The first one worked fine, the second one has the most horrible taste associated with it and I continue to flush water through. Just awful and I have no idea what those chemicals are, if they are carcinogens, and how they may have impacted my health!  I called Whirlpool and they said there are many, many counterfeit filters in the market.  I am ordering directly from Whirlpool from now on and will not use the Whirlpool water until I am satisfied that these filters are not hurting my health.

NOTE:  I just received the Genuine Certified Part from Everydrop and flushed 6 gallons of water through.  The water tastes fine now. Removed all the old ice as well and now everything is back to normal.