Product review (1 stars): Made water dirty and would not clear up.
Installed one of these but it turned the water smoky grey.  Ran it for 3 days and flushed it many times but it never cleared. I was afraid that it might damage the ice maker so I bought a different brand and the water cleared in less than a gallon of water.  Returned these for refund.  Thanks to Amazon for their great return system.