This KOHLER® shower arm includes a diverter that makes it easy to switch the water flow from showerhead to handshower or to run both at the same time. Add showerhead and handshower to complete your shower experience. Kohler has everything you need to create an extraordinary showering space. Kohler® Shower Arm, Deck/Bath Mount, For Use with: Kohler® Shower Head and Handshower, 1/2 in NPT, Brass, Vibrant® Brushed Nickel, 8-1/16 in L x 3-1/16 in W