Product review (1 stars): Be wary if sold by "PureWater Site"
I've used this product in my fridge for 5 years - this is the first time I've had filters shipped from this seller.

When the filters arrived, the boxes had clearly been opened.  I installed the filters anyway, and in the case of all four filters, the water from my fridge began to taste extremely bad after about a month of use.  I've never noticed this taste with any other filters I've used - I generally replace them every 6-9 months.

This leaves me wondering whether I was shipped used filters.  Disgusting.