5 week lifespan

I ordered this product in December of 2017, and installed it upon delivery December 21, 2017. Cleaning them today, February 2, 2018, the white course pad fell apart as I rinsed it. The carbon pad fared better, and is now the only thing in the filter. I'm giving the product three stars, because it did an excellent job filtering my 100 gallon tank where Goldie, my Koi, spends the winter. However, it gets only one star, as I think it should last more than 5 weeks. I'm going to order another set, because I like the filtration, and to see if maybe I receive a defective white pad. If it fails again, it won't make it back to three stars.

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