I love this sink and its much heavier gauge than I've seen in stores. I have not had it mounted yet. The template and mounting hardware were not box. The warranty or the manufacturer is unknown to me because that was not in the box either. I spoke with online chat at overstock and was told this sink was manufactured by Vigo which I see also makes faucets. Its seems to be higher end merchandise. I am waiting to see how overstock handles this. I may just request a replacement shipment so I would have more info available to me about the sink. I have ordered other items as well and so far I am totally satisfied with the products I have ordered and the timely fashion in which they were delivered. I was not told I needed to sign for some of the items and three out of four required a signature and each item was shipped individually so thats the only problem is staying put for the deliveries. I do love everything I received.