I can't believe how high end this facet is for under $100.00. It comes with everything except for the connector hoses. The wife and I both love it and in fact we bought another one for the other bathroom. Not sure why we ever put up with 4" facet when 8" is so much nicer.
The package comes with two adaptors that will connect to a 1/2" hose connector side and then diverts to a 3/8" connector that will connect to the facet connector.
So if your current hoses that go from water lines to facet don't work then buy two hoses that connect to your water line that also have a 1/2" connector to use with the adaptors.