Personal opinion, Kohler is living on its reputation gained many years ago. They are hard to work with, don't have anything approaching a consistent product, and getting parts is almost always a special order thing. From what I've been told, the parts listing for Kohler is like a city yellow pages...they change things on a whim. Last month's part may not fit in this month's so it is hard to stock anything like a comprehensive repair part selection except at the factory, if there. Their toilets don't seem to get great ratings, often use proprietary parts you can't repair easily. Personally, I'd stay away from them. Many manufacturers are having things built in China...their labor is so much cheaper. They can make a decent product, but the QA/QC can sometimes leave a lot to be desired. I made the mistake of ordering a stock shower door from them...promised 5-weeks. Took nearly 5-months, with promises that it would be here next week more times than I could count...I was not impressed. After all was said and done, I really wished I'd just told them to keep it and bought something else.