Single-joystick-handle four-hole widespread with sprayer deck-mount kitchen sink faucets have one handle that extends from the top of the faucet and looks like a joystick. Users can grip the joystick and move it to control water temperature and flow through the faucet. They also have a sprayer that lets users direct a spray of water to any area of the sink. The hot and cold water supplies join inside the spout to provide water for dishwashing, cooking, handwashing, and other tasks. Four-hole widespread with sprayer deck-mount faucets install onto kitchen sinks or counters. They require three holes for the faucet unit, and the outermost holes should be 8" apart. They also require a fourth hole for the sprayer.