Product review (2 stars): You get what you pay for.
I ordered these filters to save money as compared with OEM filters, and the result was proving the old saw, "You get what you pay for." Installation was a snap, so I thought all was good. When I discovered the "change filter" notice kept showing up, I let it go a couple of days thinking/hoping it might just take a little time to recognize the filter. So, I tried another of the filters and got the same result. I had gotten an email from the supplier soon after my order was placed that thanked me and assured me they wanted me to be satisfied with my purchase. So, after the issue arose, I responded advising them of it and asking for any suggestions for resolution. Several business days have passed with no response from them, so I can only presume there was no sincerity in their assurances of satisfaction. The filters are now in the process of being returned to Amazon for refund, and I would have rated one star for the whole experience, but "hate" is a word I try not to use.