Is the spray head metal or plastic?A.
The Kohler K-72218-B7 spray head is made from plastic.
What is the length of the spray hose?A.
The Kohler K-72218-B7 spray hose is 73" in length.
Do you need an AC plug under the sink?A.
The Kohler K-72218-B7 does require a AC plug to power the sensor. The plug needs to be always on, not controlled by a switch like it would normally be for a garbage disposal. In the event of a power outage there is s switch on the valve that lets you bypass the sensor.