Product review (3 stars): Not sure yet. THEY SHIP FLAT NOT ROUNDED!
At this point I can't give a fair review based on the fact that I've only had the filters for roughly a week. I will update in the near future. The only complaint I have would be the filters coming flat. In several of the reviews they stated the filters were round which would help extremely during installation. The product info was not clear. So far the filter is working but it took some handy work and a few zip ties.