Trojan HydroLink Kit for 48V Systems of 4 x 12V Batteries Components PLUS HANDPUMP• 8 x 12V Size Hydrolink Vents• 1 x Coupler & Dust Cover• 1 x Snake TubingTrojan Battery now offers the HydroLink? Watering System, a truly innovative solution that focuses on faster, easier and safer battery watering.As the leading manufacturer of deep-cycle golf car batteries, Trojan knows the importance of battery maintenance and the impact it has on your battery?s life. Battery maintenance, particularly watering your battery, can be time-consuming, messy and, in some instances, unsafe.Trojan?s HydroLink? comes with an independent, nonmechanical water level indicator that is simple to read. A white indicator means that the battery needs water and a black indicator means that the battery has enough water. The HydroLink? indicator will not give a false reading, unlike products that utilize mechanical readers.The new durable Snake? tubing offers the quickest, simplest installation. The patent pending, one-piece Snake? tubing eliminates the need for multiple connections, resulting in fewer parts and faster filling.Please ensure that you are purchasing the correct Hydrolink system to match the configuration of your system.HydroLink? comes with both internal and external flame arrestors making it the safest watering system available today. Our dual flame arrestors prevent anyspark or flame from entering your Trojan battery. It also eliminates acid exposure while filling the batteries.HydroLink? will easily fit into any existing or new electric golf car and its low profile reduces the opportunity for damage to the watering system itself. It also eliminates potential interference with other components.HydroLink? is tested and guaranteed to work with your Trojan batteries and comes with a 4-year full warranty.For successful operation