Vacuum Engine Cooling System Car Cooler Coolant Refill Cleaning Tool Kit<br> <br> Quick couplers, no more bleeding and save time for cleaning<br> Easy connection with air pump and produces vacuum in filling hose<br> Opening the valve and allowing the pre-mixed coolant to flow into the system<br> Uses workshop air to empty and test the tightness of the automatic cooling system<br> Used to replenish coolant in minutes, reduces refrigeration time and prevents air flow into the system<br> Specifications:<br> Operation:<br> 1. Clean the water in the tank<br> 2. Open the hood of the car and hang the hook in the right place<br> 3. Connect the universal rubber connector to the tank<br> 4. Make sure all switches are closed and connect the thin tube to the mouse tail<br> 5. Press the yellow switch button to open the air intake switch for vacuum When the pressure reaches -20-25 Inhg (-50-60cmhg), turn off the switch #3)<br> 6. The antifreeze hose will be connected to the body, the other end to the antifreeze container, the interface must be completely submerged below the water level, open the water switch antifreeze agent automatically added to the tank<br> Size Chart:<br> Material: metal plastic<br> Size: 610x370x150mm/24.02x14.57x5.91 inch<br> The package includes:<br> 1 set of indicators to refill the radiator coolant