Multifunction faucet spray head

A faucet assembly with a multifunction spray head is provided. The spray head is capable of four spray functions, and has an outer shell; a flow body extending within the shell, a first end extending out of the shell for attachment to a faucet and a second end in fluid communication with a spray selector assembly. The flow body defines a flow path from the first end of the flow body to a flow selector assembly. The spray head includes a flow selector assembly comprising: a selector valve housing body having at least four valve recesses therein; at least four flow selector valves seated within the recesses in the selector valve housing body; and a rotating selector valve ring. A sprayer seat has a faceplate and a flow diversion conduit corresponding to each selector valve to provide flow paths from a selector valve to a sprayer outlet or aerator outlet.