To get in touch with Kohler, check out the 'Contact Us' section of their US website here. If you have a product question, you can call or text Kohler during office hours (Monday-Friday, 8:00 am-5:00 pm CT): 1-800-4-KOHLER (1-800-456-4537). Kohler's site also has a chat function that allows you to contact one of their expert team for other inquiries. This can be found in the bottom right-hand corner of their site, which I have linked above.