Now that we've had the faucet installed (by a plumber), we're very happy with both it's appearance and function. However, our sink is a Blanco granite composite undermount, which added some thickness below the granite. As a result, the threaded shank on the soap dispenser is not long enough to go through the granite + composite sink - plumber says we need another inch or two. The manufacturer doesn't make an extension; the threads are metric, so we can't buy any kind of extension locally. Consequently, our granite fabricator is coming back to drill a larger opening from underneath, which will be quite a task. Bottom line................pay more attention than I did to the specific measurements of the soap dispenser, and assume nothing.