Product review (1 stars): We have never had any problems with this item before ...
We have never had any problems with this item before. Unfortunately after a month of no water flow and trying various solutions we broke down and went and bought another filter somewhere else.  No issues with that filter. These are defective and because we tried to make sure that it wasn't an issue on our end, we are out of the cost of the filters bought via amazon.  Past return/refund date and unable to contact amazon to even complain.  Do yourself a favor, don't order until you absolutely need to replace the filter and if there are problems don't try to resolve, just return.