2,500 Gallon Capacity Upgraded Replacement Filter Cartridge set

I''m trying this out as a replacement for the Everpure filters, which only last 4-6 months (we never get 1000 gallons out of them). The installation is straight forward, and a bit easier since they''re shorter than the Everpure H-1200. The water flavor is similar to what we got from Everpure, and I like the fact that it uses a solid carbon block for filtering. I''m hoping it will last longer (2,500 gallons?), and will try to update the review in about 8 months.