Product review (3 stars): Ordered the Acqua Crest 640565 but received the Tier 1 ...
Ordered the Acqua Crest 640565 but received the Tier 1 RWF1100 instead.  Finally used up my other filters and started using these.  The fit worked well and there were no leaks.  There was no information as to what was being filtered but the water looked fairly clear.  However, lately we've noticed that when the ice melted there was a faint peculiar taste to the ice water.  This was definitely noticed by people who visited and used the ice for ice water.  The filter has only been used for two months.  Will replace with a new one and see if the taste is the same.