Review on LARATH Filters Disposable Natural Unbleached by Marcos Woody

We just bought a Hamilton Beach Flex beer because our Keurig broke and we didn't want to spend that much money on a coffee maker. The flexible brewing process suited our needs perfectly, with the exception of the brew basket, which leaves fine coffee grounds at the bottom of our cups. So I found these filters which solved the problem except there are only 50 in the box. We both drink two cups in the morning which means we use 4 of these filters a day which means they only last us 12 days and on day 13 we only drink one cup! That works out to about $1 a day for filters alone. I don't understand why they are so expensive. I'm trying to find a similar product for at least half that price.