Product review (1 stars): Keep the box so you can return this filter.
Make sure you save the box the filter came in so you can send it back when you taste the water!

After ordering an off-brand filter (I didn't realize it was a knock off until I received it), I had to send it back.  The tabs on the installation end broke off when I tried to put the little end-cap on.

Now I'm wondering what to try.  This Whirlpool Brand filter was ordered because it was Whirlpool.  Has to be better because it's Whirlpool, right???

But no.  As others have said, this filter leaves the water completely non-palatable.  Have tried to run multiple courses of water through, and nothing improves the taste.  And of course I tossed the box before I actually tasted the water, so I feel like I'm stuck.