A handheld showerhead has a showerhead portion including a plurality of spray nozzles and a handle portion including a fluid inlet that receives water flow from a water source and a fluid passage that transports the water flow from the fluid inlet to the showerhead portion in a first flow direction. A fluid conveyance structure positioned at least partially within the showerhead portion has a base with two or more inlet openings. A mode selector includes a control knob and a fluid chamber with a fluid inlet that receives the water flow from the handle portion in a second flow direction and a rotatable chamber wall that defines a chamber outlet in selective fluid communication with the fluid conveyance structure. Rotation of the control knob rotates the chamber wall to selectively align the chamber outlet with one of the inlet openings in the base of the fluid conveyance structure.