I've just discovered that the Kohler Aquifer K-203 replacement filter cartridge has been discontinued by Kohler. I believe the main difference between the K-202 and K-203 is that the K-203 has (had) VOC removal. I live in an area that has above-standard VOC levels and I can't seem to find any cartridge that might fit the Aquifer system that handles VOCs. This is frustrating because it was one of the reasons we went with this particular system...
Anyone know of such a filter? Or do you think I'm out of luck and will need to replace the whole system?