I don't think it's Delta - looks to be Pfister/Premier/Kingston or something like that. Here's a link of similar faucets:
http://www.faucetdirect.com/index.cfm?term=sink%20faucets&page=search:browse&f17834=1%2E0&s=price_low
I couldn't find the exact one, but this may help you in your search...
