Mine didn’t. Just a plastic hose that you bring to the sink vanity and a vampire tap thingy, which I didn’t use; instead, just soldered in a T fitting (3/8" copper on the ends, 1/4" plastic pipe connector at the perpendicular fitting).
This setup assumes toilet near sink vanity; more difficult if too large separation there, or any configuration where running a plastic line is difficult.
I’m no plumber, but I do wonder if there are code issues with running the hot water like this. Also, no backflow valves are present; I was told by the Home Depot dude that I needed one if I added a simple hose-and-spray-nozzle device.
Bidet naysayers: give it an honest try.
