Hi Deb, this is Keisha with the Kohler Co. I would be more than happy to answer your question. The model number for the centerset faucet is K-2907-4-0 and you can view it at this link https://bit.ly/2Z3Aq3R. Thank you for choosing KOHLER.
Hi, this is Laura with Kohler Co. I am happy to assist you with your question. The water depth to the overflow is 4-3/4". Thank you for choosing KOHLER.