Having an electronic timer or clock can save you time and money! You can program them to control the settings of your pumps along with your garden lights and underwater or fountain lighting. The Intermatic Time Clocks that we carry include the Intermatic 3 Circuit Electronic Timer, the Intermatic T101P3 110 volt Time Clock, the Intermatic T101R3 110 volt Time Clock, the Intermatic T104P3 220 volt Time Clock and the Intermatic T104R3 220 volt Time Clock. Each one of these would be an excellent choice. The Intermatic 3 Circuit Electronic Timer is designed for aftermarket and retro-fit applications, it has the ability to program three different circuits and snap into almost any Intermatic enclosure. You can choose between five pre-programmed modes of operation, which include single speed pump or 2-speed pump and booster/cleaner pump combinations. Countdown and Override features allow cycle interruptions when pool/spa service is required. The Intermatic T101P3 110 volt, T101R3 110 volt, T104P3 220 volt and T104R3 220 volt Time Clocks are heavy duty mechanical switches that are designed for industrial, commercial and residential applications and have the highest motorload ratings in the industry. Providing up to twelve ON-OFF operations each day with a minimum ON-OFF time of one hour.