These filters are not OEM equivalent (in terms of pleat depth etc.) and they do not come in a fully sealed bag like an equivalent OEM . That being said, I expect these filters to be sufficient and last as long as the OEM filter that comes with the unit in the retail box: around 6 months. You end up with 2 filters that last about a year; Filters that aren't even fully sealed in the retail box cost a few dollars less than OEM filters, which last about a year.
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