Product review (4 stars): Filters are fine - But no Instructions
Product received quickly.  The filter fits and functions perfectly.  I bought a pack of 2.  Both came wrapped in plastic with no box.  This means that no instructions were included and no set of the usual month stickers that remind you of the month that you changed the filter.  I've purchased from other Amazon vendors in the past that did include this.  Not a huge issue because I've installed these many times before and know that you're supposed to flush the water system for a few minutes after installation.  Just something that buyers should be aware of.