Trojan HydroLink Kit for 48V Systems of 4 x 12V Batteries Components 8 x 12V Size Hydrolink Vents, 1 x Coupler & Dust Cover, 1 x Snake Tubing, 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, Trojan Batterys HydroLink Watering System must use an approved Flow-Rite water supply system. Other water supply systems will not work with HydroLink and should not be used. Usage of a non-Flow-Rite water supply voids the HydroLink warranty and may damage the battery. The HydroLink Watering Systems must only be used on the following Trojan Battery products: T-605, T-105, T105-RE, T-125, T-145, T-860, T-875, T-890, T-1275, J150, HydroLink does not work with Trojans Plus Series batteries.