Product review (1 stars): Water Sentinel Filters may be expired inventory. Beware.
I bought 3 of these filters in August of 1913. All three of them were producing white particles that could be seen floating in ice cubes and settled at the bottom of drinking glasses. It got worse with each successive filter. Just put in the last one this weekend, after replacing the entire water feed tubing into the refrigerator. White particles are voluminous. I think it may have something to do with the age of the filter. Tried to find the company to contact them about this, but looks like "Water Sentinel Filters" company is gone.