The Kohler DTV+ Data Cable is designed for use with the DTV+ Showering System. This RJ11 cable has a length of 30 ft. The cable is required to connect the Six-Port Thermostatic Valve K-682-K to the System Control Module K-99695 or Eco-System Control Module K-99695-E. Connects to the Six-Port Thermostatic Valve K-682-K (sold separately) Cable length can be extended with Cable KitK-1143087 (sold separately) Installation and Operation Manual