I haven’t received this yet but I have asked questions about overflow on the sink, size of the drain hole, and have not received a reply yet. I also called and they told me they will call me back in a few minutes....no call yet after 12 hours And 1 day of emailing the questions. I ask because I need to plan buying the supplies such as drain stopper. This is frustrating because I need all materials to be delivered for my contractor to work on and I can’t even order them yet because I don’t know the specifics of this product.